drm/msm/dsi: replace version checks with helper functions
Replace version checks with the helper functions bound to cfg_handler for DSI v2, DSI 6G 1.x and DSI 6G v2.0+ controllers Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Sibi Sankar
Rob Clark
parent
c4d8cfe516
commit
8f7ca54090
1 changed files with 29 additions and 212 deletions
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@ -427,19 +427,6 @@ static int dsi_clk_init(struct msm_dsi_host *msm_host)
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goto exit;
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}
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if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G &&
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cfg_hnd->minor >= MSM_DSI_6G_VER_MINOR_V2_2_1) {
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msm_host->byte_intf_clk = msm_clk_get(pdev, "byte_intf");
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if (IS_ERR(msm_host->byte_intf_clk)) {
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ret = PTR_ERR(msm_host->byte_intf_clk);
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pr_err("%s: can't find byte_intf clock. ret=%d\n",
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__func__, ret);
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goto exit;
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}
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} else {
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msm_host->byte_intf_clk = NULL;
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}
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msm_host->byte_clk_src = clk_get_parent(msm_host->byte_clk);
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if (!msm_host->byte_clk_src) {
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ret = -ENODEV;
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@ -454,31 +441,8 @@ static int dsi_clk_init(struct msm_dsi_host *msm_host)
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goto exit;
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}
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if (cfg_hnd->major == MSM_DSI_VER_MAJOR_V2) {
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msm_host->src_clk = msm_clk_get(pdev, "src");
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if (IS_ERR(msm_host->src_clk)) {
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ret = PTR_ERR(msm_host->src_clk);
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pr_err("%s: can't find src clock. ret=%d\n",
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__func__, ret);
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msm_host->src_clk = NULL;
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goto exit;
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}
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msm_host->esc_clk_src = clk_get_parent(msm_host->esc_clk);
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if (!msm_host->esc_clk_src) {
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ret = -ENODEV;
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pr_err("%s: can't get esc clock parent. ret=%d\n",
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__func__, ret);
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goto exit;
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}
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msm_host->dsi_clk_src = clk_get_parent(msm_host->src_clk);
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if (!msm_host->dsi_clk_src) {
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ret = -ENODEV;
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pr_err("%s: can't get src clock parent. ret=%d\n",
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__func__, ret);
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}
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}
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if (cfg_hnd->ops->clk_init_ver)
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ret = cfg_hnd->ops->clk_init_ver(msm_host);
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exit:
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return ret;
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}
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@ -682,16 +646,6 @@ error:
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return ret;
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}
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static int dsi_link_clk_enable(struct msm_dsi_host *msm_host)
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{
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const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
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if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G)
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return dsi_link_clk_enable_6g(msm_host);
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else
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return dsi_link_clk_enable_v2(msm_host);
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}
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void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host)
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{
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clk_disable_unprepare(msm_host->esc_clk);
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@ -709,24 +663,6 @@ void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host)
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clk_disable_unprepare(msm_host->byte_clk);
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}
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static void dsi_link_clk_disable(struct msm_dsi_host *msm_host)
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{
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const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
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if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G) {
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clk_disable_unprepare(msm_host->esc_clk);
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clk_disable_unprepare(msm_host->pixel_clk);
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if (msm_host->byte_intf_clk)
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clk_disable_unprepare(msm_host->byte_intf_clk);
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clk_disable_unprepare(msm_host->byte_clk);
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} else {
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clk_disable_unprepare(msm_host->pixel_clk);
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clk_disable_unprepare(msm_host->src_clk);
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clk_disable_unprepare(msm_host->esc_clk);
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clk_disable_unprepare(msm_host->byte_clk);
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}
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}
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int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host)
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{
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struct drm_display_mode *mode = msm_host->mode;
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@ -805,73 +741,6 @@ int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host)
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return 0;
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}
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static int dsi_calc_clk_rate(struct msm_dsi_host *msm_host)
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{
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struct drm_display_mode *mode = msm_host->mode;
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const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
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u8 lanes = msm_host->lanes;
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u32 bpp = dsi_get_bpp(msm_host->format);
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u32 pclk_rate;
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if (!mode) {
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pr_err("%s: mode not set\n", __func__);
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return -EINVAL;
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}
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pclk_rate = mode->clock * 1000;
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if (lanes > 0) {
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msm_host->byte_clk_rate = (pclk_rate * bpp) / (8 * lanes);
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} else {
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pr_err("%s: forcing mdss_dsi lanes to 1\n", __func__);
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msm_host->byte_clk_rate = (pclk_rate * bpp) / 8;
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}
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DBG("pclk=%d, bclk=%d", pclk_rate, msm_host->byte_clk_rate);
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msm_host->esc_clk_rate = clk_get_rate(msm_host->esc_clk);
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if (cfg_hnd->major == MSM_DSI_VER_MAJOR_V2) {
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unsigned int esc_mhz, esc_div;
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unsigned long byte_mhz;
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msm_host->src_clk_rate = (pclk_rate * bpp) / 8;
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/*
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* esc clock is byte clock followed by a 4 bit divider,
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* we need to find an escape clock frequency within the
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* mipi DSI spec range within the maximum divider limit
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* We iterate here between an escape clock frequencey
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* between 20 Mhz to 5 Mhz and pick up the first one
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* that can be supported by our divider
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*/
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byte_mhz = msm_host->byte_clk_rate / 1000000;
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for (esc_mhz = 20; esc_mhz >= 5; esc_mhz--) {
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esc_div = DIV_ROUND_UP(byte_mhz, esc_mhz);
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/*
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* TODO: Ideally, we shouldn't know what sort of divider
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* is available in mmss_cc, we're just assuming that
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* it'll always be a 4 bit divider. Need to come up with
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* a better way here.
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*/
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if (esc_div >= 1 && esc_div <= 16)
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break;
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}
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if (esc_mhz < 5)
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return -EINVAL;
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msm_host->esc_clk_rate = msm_host->byte_clk_rate / esc_div;
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DBG("esc=%d, src=%d", msm_host->esc_clk_rate,
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msm_host->src_clk_rate);
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}
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return 0;
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}
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static void dsi_intr_ctrl(struct msm_dsi_host *msm_host, u32 mask, int enable)
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{
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u32 intr;
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@ -1193,54 +1062,6 @@ int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size)
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return 0;
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}
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/* dsi_cmd */
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static int dsi_tx_buf_alloc(struct msm_dsi_host *msm_host, int size)
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{
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struct drm_device *dev = msm_host->dev;
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struct msm_drm_private *priv = dev->dev_private;
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const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
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int ret;
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uint64_t iova;
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if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G) {
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msm_host->tx_gem_obj = msm_gem_new(dev, size, MSM_BO_UNCACHED);
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if (IS_ERR(msm_host->tx_gem_obj)) {
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ret = PTR_ERR(msm_host->tx_gem_obj);
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pr_err("%s: failed to allocate gem, %d\n",
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__func__, ret);
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msm_host->tx_gem_obj = NULL;
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return ret;
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}
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ret = msm_gem_get_iova(msm_host->tx_gem_obj,
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priv->kms->aspace, &iova);
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if (ret) {
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pr_err("%s: failed to get iova, %d\n", __func__, ret);
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return ret;
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}
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if (iova & 0x07) {
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pr_err("%s: buf NOT 8 bytes aligned\n", __func__);
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return -EINVAL;
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}
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msm_host->tx_size = msm_host->tx_gem_obj->size;
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} else {
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msm_host->tx_buf = dma_alloc_coherent(dev->dev, size,
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&msm_host->tx_buf_paddr, GFP_KERNEL);
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if (!msm_host->tx_buf) {
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ret = -ENOMEM;
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pr_err("%s: failed to allocate tx buf, %d\n",
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__func__, ret);
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return ret;
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}
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msm_host->tx_size = size;
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}
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return 0;
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}
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static void dsi_tx_buf_free(struct msm_dsi_host *msm_host)
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{
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struct drm_device *dev = msm_host->dev;
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@ -1306,15 +1127,11 @@ static int dsi_cmd_dma_add(struct msm_dsi_host *msm_host,
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return -EINVAL;
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}
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if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G) {
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data = msm_gem_get_vaddr(msm_host->tx_gem_obj);
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if (IS_ERR(data)) {
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ret = PTR_ERR(data);
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pr_err("%s: get vaddr failed, %d\n", __func__, ret);
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return ret;
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}
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} else {
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data = msm_host->tx_buf;
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data = cfg_hnd->ops->tx_buf_get(msm_host);
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if (IS_ERR(data)) {
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ret = PTR_ERR(data);
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pr_err("%s: get vaddr failed, %d\n", __func__, ret);
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return ret;
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}
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/* MSM specific command format in memory */
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@ -1335,8 +1152,8 @@ static int dsi_cmd_dma_add(struct msm_dsi_host *msm_host,
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if (packet.size < len)
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memset(data + packet.size, 0xff, len - packet.size);
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if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G)
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msm_gem_put_vaddr(msm_host->tx_gem_obj);
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if (cfg_hnd->ops->tx_buf_put)
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cfg_hnd->ops->tx_buf_put(msm_host);
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return len;
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}
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@ -1407,21 +1224,14 @@ int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *dma_base)
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static int dsi_cmd_dma_tx(struct msm_dsi_host *msm_host, int len)
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{
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const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
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struct drm_device *dev = msm_host->dev;
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struct msm_drm_private *priv = dev->dev_private;
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int ret;
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uint64_t dma_base;
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bool triggered;
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if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G) {
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ret = msm_gem_get_iova(msm_host->tx_gem_obj,
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priv->kms->aspace, &dma_base);
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if (ret) {
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pr_err("%s: failed to get iova: %d\n", __func__, ret);
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return ret;
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}
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} else {
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dma_base = msm_host->tx_buf_paddr;
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ret = cfg_hnd->ops->dma_base_get(msm_host, &dma_base);
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if (ret) {
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pr_err("%s: failed to get iova: %d\n", __func__, ret);
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return ret;
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}
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reinit_completion(&msm_host->dma_comp);
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@ -2059,6 +1869,7 @@ int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
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struct drm_device *dev)
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{
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struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
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const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
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struct platform_device *pdev = msm_host->pdev;
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int ret;
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@ -2079,7 +1890,7 @@ int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
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}
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msm_host->dev = dev;
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ret = dsi_tx_buf_alloc(msm_host, SZ_4K);
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ret = cfg_hnd->ops->tx_buf_alloc(msm_host, SZ_4K);
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if (ret) {
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pr_err("%s: alloc tx gem obj failed, %d\n", __func__, ret);
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return ret;
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@ -2137,6 +1948,7 @@ int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
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const struct mipi_dsi_msg *msg)
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{
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struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
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const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
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/* TODO: make sure dsi_cmd_mdp is idle.
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* Since DSI6G v1.2.0, we can set DSI_TRIG_CTRL.BLOCK_DMA_WITHIN_FRAME
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@ -2149,7 +1961,7 @@ int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
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* mdp clock need to be enabled to receive dsi interrupt
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*/
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pm_runtime_get_sync(&msm_host->pdev->dev);
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dsi_link_clk_enable(msm_host);
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cfg_hnd->ops->link_clk_enable(msm_host);
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/* TODO: vote for bus bandwidth */
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@ -2170,6 +1982,7 @@ void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
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const struct mipi_dsi_msg *msg)
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{
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struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
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const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
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dsi_intr_ctrl(msm_host, DSI_IRQ_MASK_CMD_DMA_DONE, 0);
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dsi_write(msm_host, REG_DSI_CTRL, msm_host->dma_cmd_ctrl_restore);
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@ -2179,7 +1992,7 @@ void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
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/* TODO: unvote for bus bandwidth */
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dsi_link_clk_disable(msm_host);
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cfg_hnd->ops->link_clk_disable(msm_host);
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pm_runtime_put_autosuspend(&msm_host->pdev->dev);
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}
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@ -2343,7 +2156,6 @@ int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
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struct msm_dsi_pll *src_pll)
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{
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struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
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const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
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struct clk *byte_clk_provider, *pixel_clk_provider;
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int ret;
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@ -2369,14 +2181,16 @@ int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
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goto exit;
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}
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if (cfg_hnd->major == MSM_DSI_VER_MAJOR_V2) {
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if (msm_host->dsi_clk_src) {
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ret = clk_set_parent(msm_host->dsi_clk_src, pixel_clk_provider);
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if (ret) {
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pr_err("%s: can't set parent to dsi_clk_src. ret=%d\n",
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__func__, ret);
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goto exit;
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}
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}
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if (msm_host->esc_clk_src) {
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ret = clk_set_parent(msm_host->esc_clk_src, byte_clk_provider);
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if (ret) {
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pr_err("%s: can't set parent to esc_clk_src. ret=%d\n",
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@ -2406,9 +2220,10 @@ void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host,
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struct msm_dsi_phy_clk_request *clk_req)
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{
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struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
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const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
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int ret;
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ret = dsi_calc_clk_rate(msm_host);
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ret = cfg_hnd->ops->calc_clk_rate(msm_host);
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if (ret) {
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pr_err("%s: unable to calc clk rate, %d\n", __func__, ret);
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return;
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@ -2473,6 +2288,7 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host,
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struct msm_dsi_phy_shared_timings *phy_shared_timings)
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{
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struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
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const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
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int ret = 0;
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mutex_lock(&msm_host->dev_mutex);
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@ -2491,7 +2307,7 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host,
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}
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pm_runtime_get_sync(&msm_host->pdev->dev);
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ret = dsi_link_clk_enable(msm_host);
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ret = cfg_hnd->ops->link_clk_enable(msm_host);
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if (ret) {
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pr_err("%s: failed to enable link clocks. ret=%d\n",
|
||||
__func__, ret);
|
||||
|
|
@ -2518,7 +2334,7 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host,
|
|||
return 0;
|
||||
|
||||
fail_disable_clk:
|
||||
dsi_link_clk_disable(msm_host);
|
||||
cfg_hnd->ops->link_clk_disable(msm_host);
|
||||
pm_runtime_put_autosuspend(&msm_host->pdev->dev);
|
||||
fail_disable_reg:
|
||||
dsi_host_regulator_disable(msm_host);
|
||||
|
|
@ -2530,6 +2346,7 @@ unlock_ret:
|
|||
int msm_dsi_host_power_off(struct mipi_dsi_host *host)
|
||||
{
|
||||
struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
|
||||
const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
|
||||
|
||||
mutex_lock(&msm_host->dev_mutex);
|
||||
if (!msm_host->power_on) {
|
||||
|
|
@ -2544,7 +2361,7 @@ int msm_dsi_host_power_off(struct mipi_dsi_host *host)
|
|||
|
||||
pinctrl_pm_select_sleep_state(&msm_host->pdev->dev);
|
||||
|
||||
dsi_link_clk_disable(msm_host);
|
||||
cfg_hnd->ops->link_clk_disable(msm_host);
|
||||
pm_runtime_put_autosuspend(&msm_host->pdev->dev);
|
||||
|
||||
dsi_host_regulator_disable(msm_host);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue