diff options
| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2021-10-02 04:27:15 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2021-10-16 02:35:40 +0300 |
| commit | d9fbb54d6641cfb1ef3042676d0126df59ad52ce (patch) | |
| tree | ad8491ef6f7b139050a3daa82cfb8899a6dac98d /drivers/gpu/drm/msm | |
| parent | 658f4c8296888c135e394cc21f94386958c36ac7 (diff) | |
| download | linux-d9fbb54d6641cfb1ef3042676d0126df59ad52ce.tar.xz | |
drm/msm/dsi: use bulk clk API
Use clk_bulk_* API instead of hand-coding them. Note, this drops support
for legacy clk naming (e.g. "iface_clk" instead of just "iface"),
however all in-kernel device trees were converted long long ago. The
warning is present there since 2017.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211002012715.691406-1-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm')
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/dsi_host.c | 59 |
1 files changed, 12 insertions, 47 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 77553d75088f..734a209071d9 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -106,7 +106,8 @@ struct msm_dsi_host { phys_addr_t ctrl_size; struct regulator_bulk_data supplies[DSI_DEV_REGULATOR_MAX]; - struct clk *bus_clks[DSI_BUS_CLK_MAX]; + int num_bus_clks; + struct clk_bulk_data bus_clks[DSI_BUS_CLK_MAX]; struct clk *byte_clk; struct clk *esc_clk; @@ -374,15 +375,14 @@ static int dsi_clk_init(struct msm_dsi_host *msm_host) int i, ret = 0; /* get bus clocks */ - for (i = 0; i < cfg->num_bus_clks; i++) { - msm_host->bus_clks[i] = msm_clk_get(pdev, - cfg->bus_clk_names[i]); - if (IS_ERR(msm_host->bus_clks[i])) { - ret = PTR_ERR(msm_host->bus_clks[i]); - pr_err("%s: Unable to get %s clock, ret = %d\n", - __func__, cfg->bus_clk_names[i], ret); - goto exit; - } + for (i = 0; i < cfg->num_bus_clks; i++) + msm_host->bus_clks[i].id = cfg->bus_clk_names[i]; + msm_host->num_bus_clks = cfg->num_bus_clks; + + ret = devm_clk_bulk_get(&pdev->dev, msm_host->num_bus_clks, msm_host->bus_clks); + if (ret < 0) { + dev_err(&pdev->dev, "Unable to get clocks, ret = %d\n", ret); + goto exit; } /* get link and source clocks */ @@ -433,41 +433,6 @@ exit: return ret; } -static int dsi_bus_clk_enable(struct msm_dsi_host *msm_host) -{ - const struct msm_dsi_config *cfg = msm_host->cfg_hnd->cfg; - int i, ret; - - DBG("id=%d", msm_host->id); - - for (i = 0; i < cfg->num_bus_clks; i++) { - ret = clk_prepare_enable(msm_host->bus_clks[i]); - if (ret) { - pr_err("%s: failed to enable bus clock %d ret %d\n", - __func__, i, ret); - goto err; - } - } - - return 0; -err: - while (--i >= 0) - clk_disable_unprepare(msm_host->bus_clks[i]); - - return ret; -} - -static void dsi_bus_clk_disable(struct msm_dsi_host *msm_host) -{ - const struct msm_dsi_config *cfg = msm_host->cfg_hnd->cfg; - int i; - - DBG(""); - - for (i = cfg->num_bus_clks - 1; i >= 0; i--) - clk_disable_unprepare(msm_host->bus_clks[i]); -} - int msm_dsi_runtime_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); @@ -478,7 +443,7 @@ int msm_dsi_runtime_suspend(struct device *dev) if (!msm_host->cfg_hnd) return 0; - dsi_bus_clk_disable(msm_host); + clk_bulk_disable_unprepare(msm_host->num_bus_clks, msm_host->bus_clks); return 0; } @@ -493,7 +458,7 @@ int msm_dsi_runtime_resume(struct device *dev) if (!msm_host->cfg_hnd) return 0; - return dsi_bus_clk_enable(msm_host); + return clk_bulk_prepare_enable(msm_host->num_bus_clks, msm_host->bus_clks); } int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host) |