Re: [PATCH 3/5] drm/msm/dsi: replace version checks with helper functions
On Monday 12 March 2018 06:53 PM, Sibi S wrote: Replace version checks with the helper functions bound to cfg_handler for DSI v2 and DSI 6G 1.x controllers With the ops set up for DSI6G 2.x too: Reviewed-by: Archit Taneja Thanks, Archit Signed-off-by: Sibi S --- drivers/gpu/drm/msm/dsi/dsi_host.c | 242 + 1 file changed, 29 insertions(+), 213 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index f7a066d..b755b69 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -426,19 +426,6 @@ static int dsi_clk_init(struct msm_dsi_host *msm_host) goto exit; } - if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G && - cfg_hnd->minor >= MSM_DSI_6G_VER_MINOR_V2_2_1) { - msm_host->byte_intf_clk = msm_clk_get(pdev, "byte_intf"); - if (IS_ERR(msm_host->byte_intf_clk)) { - ret = PTR_ERR(msm_host->byte_intf_clk); - pr_err("%s: can't find byte_intf clock. ret=%d\n", - __func__, ret); - goto exit; - } - } else { - msm_host->byte_intf_clk = NULL; - } - msm_host->byte_clk_src = clk_get_parent(msm_host->byte_clk); if (!msm_host->byte_clk_src) { ret = -ENODEV; @@ -453,31 +440,8 @@ static int dsi_clk_init(struct msm_dsi_host *msm_host) goto exit; } - if (cfg_hnd->major == MSM_DSI_VER_MAJOR_V2) { - msm_host->src_clk = msm_clk_get(pdev, "src"); - if (IS_ERR(msm_host->src_clk)) { - ret = PTR_ERR(msm_host->src_clk); - pr_err("%s: can't find src clock. ret=%d\n", - __func__, ret); - msm_host->src_clk = NULL; - goto exit; - } - - msm_host->esc_clk_src = clk_get_parent(msm_host->esc_clk); - if (!msm_host->esc_clk_src) { - ret = -ENODEV; - pr_err("%s: can't get esc clock parent. ret=%d\n", - __func__, ret); - goto exit; - } - - msm_host->dsi_clk_src = clk_get_parent(msm_host->src_clk); - if (!msm_host->dsi_clk_src) { - ret = -ENODEV; - pr_err("%s: can't get src clock parent. ret=%d\n", - __func__, ret); - } - } + if (cfg_hnd->ops->clk_init_ver) + ret = cfg_hnd->ops->clk_init_ver(msm_host); exit: return ret; } @@ -681,16 +645,6 @@ int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host) return ret; } -static int dsi_link_clk_enable(struct msm_dsi_host *msm_host) -{ - const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd; - - if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G) - return dsi_link_clk_enable_6g(msm_host); - else - return dsi_link_clk_enable_v2(msm_host); -} - void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host) { clk_disable_unprepare(msm_host->esc_clk); @@ -708,24 +662,6 @@ void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host) clk_disable_unprepare(msm_host->byte_clk); } -static void dsi_link_clk_disable(struct msm_dsi_host *msm_host) -{ - const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd; - - if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G) { - clk_disable_unprepare(msm_host->esc_clk); - clk_disable_unprepare(msm_host->pixel_clk); - if (msm_host->byte_intf_clk) - clk_disable_unprepare(msm_host->byte_intf_clk); - clk_disable_unprepare(msm_host->byte_clk); - } else { - clk_disable_unprepare(msm_host->pixel_clk); - clk_disable_unprepare(msm_host->src_clk); - clk_disable_unprepare(msm_host->esc_clk); - clk_disable_unprepare(msm_host->byte_clk); - } -} - int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host) { struct drm_display_mode *mode = msm_host->mode; @@ -814,73 +750,6 @@ int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host) return 0; } -static int dsi_calc_clk_rate(struct msm_dsi_host *msm_host) -{ - struct drm_display_mode *mode = msm_host->mode; - const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd; - u8 lanes = msm_host->lanes; - u32 bpp = dsi_get_bpp(msm_host->format); - u32 pclk_rate; - - if (!mode) { - pr_err("%s: mode not set\n", __func__); - return -EINVAL; - } - - pclk_rate = mode->clock * 1000; - if (lanes > 0) { - msm_host->byte_clk_rate = (pclk_rate * bpp) / (8 * lanes); - } else {
[PATCH 3/5] drm/msm/dsi: replace version checks with helper functions
Replace version checks with the helper functions bound to cfg_handler for DSI v2 and DSI 6G 1.x controllers Signed-off-by: Sibi S --- drivers/gpu/drm/msm/dsi/dsi_host.c | 242 + 1 file changed, 29 insertions(+), 213 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index f7a066d..b755b69 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -426,19 +426,6 @@ static int dsi_clk_init(struct msm_dsi_host *msm_host) goto exit; } - if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G && - cfg_hnd->minor >= MSM_DSI_6G_VER_MINOR_V2_2_1) { - msm_host->byte_intf_clk = msm_clk_get(pdev, "byte_intf"); - if (IS_ERR(msm_host->byte_intf_clk)) { - ret = PTR_ERR(msm_host->byte_intf_clk); - pr_err("%s: can't find byte_intf clock. ret=%d\n", - __func__, ret); - goto exit; - } - } else { - msm_host->byte_intf_clk = NULL; - } - msm_host->byte_clk_src = clk_get_parent(msm_host->byte_clk); if (!msm_host->byte_clk_src) { ret = -ENODEV; @@ -453,31 +440,8 @@ static int dsi_clk_init(struct msm_dsi_host *msm_host) goto exit; } - if (cfg_hnd->major == MSM_DSI_VER_MAJOR_V2) { - msm_host->src_clk = msm_clk_get(pdev, "src"); - if (IS_ERR(msm_host->src_clk)) { - ret = PTR_ERR(msm_host->src_clk); - pr_err("%s: can't find src clock. ret=%d\n", - __func__, ret); - msm_host->src_clk = NULL; - goto exit; - } - - msm_host->esc_clk_src = clk_get_parent(msm_host->esc_clk); - if (!msm_host->esc_clk_src) { - ret = -ENODEV; - pr_err("%s: can't get esc clock parent. ret=%d\n", - __func__, ret); - goto exit; - } - - msm_host->dsi_clk_src = clk_get_parent(msm_host->src_clk); - if (!msm_host->dsi_clk_src) { - ret = -ENODEV; - pr_err("%s: can't get src clock parent. ret=%d\n", - __func__, ret); - } - } + if (cfg_hnd->ops->clk_init_ver) + ret = cfg_hnd->ops->clk_init_ver(msm_host); exit: return ret; } @@ -681,16 +645,6 @@ int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host) return ret; } -static int dsi_link_clk_enable(struct msm_dsi_host *msm_host) -{ - const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd; - - if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G) - return dsi_link_clk_enable_6g(msm_host); - else - return dsi_link_clk_enable_v2(msm_host); -} - void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host) { clk_disable_unprepare(msm_host->esc_clk); @@ -708,24 +662,6 @@ void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host) clk_disable_unprepare(msm_host->byte_clk); } -static void dsi_link_clk_disable(struct msm_dsi_host *msm_host) -{ - const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd; - - if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G) { - clk_disable_unprepare(msm_host->esc_clk); - clk_disable_unprepare(msm_host->pixel_clk); - if (msm_host->byte_intf_clk) - clk_disable_unprepare(msm_host->byte_intf_clk); - clk_disable_unprepare(msm_host->byte_clk); - } else { - clk_disable_unprepare(msm_host->pixel_clk); - clk_disable_unprepare(msm_host->src_clk); - clk_disable_unprepare(msm_host->esc_clk); - clk_disable_unprepare(msm_host->byte_clk); - } -} - int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host) { struct drm_display_mode *mode = msm_host->mode; @@ -814,73 +750,6 @@ int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host) return 0; } -static int dsi_calc_clk_rate(struct msm_dsi_host *msm_host) -{ - struct drm_display_mode *mode = msm_host->mode; - const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd; - u8 lanes = msm_host->lanes; - u32 bpp = dsi_get_bpp(msm_host->format); - u32 pclk_rate; - - if (!mode) { - pr_err("%s: mode not set\n", __func__); - return -EINVAL; - } - - pclk_rate = mode->clock * 1000; - if (lanes > 0) { - msm_host->byte_clk_rate = (pclk_rate * bpp) / (8 * lanes); - } else { - pr_err("%s: forcing mdss_dsi lanes to 1\n", __func__); - msm_host->byte_clk_rate = (pclk_rate * bpp) / 8; - } - -