drm/msm/dsi: Enable PLL driver in MSM DSI
This change activates PLL driver for DSI to work with
common clock framework.
Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 8a246cf..43ea8a3 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -205,6 +205,9 @@
struct clk *byte_clk;
struct clk *esc_clk;
struct clk *pixel_clk;
+ struct clk *byte_clk_src;
+ struct clk *pixel_clk_src;
+
u32 byte_clk_rate;
struct gpio_desc *disp_en_gpio;
@@ -463,6 +466,22 @@
goto exit;
}
+ msm_host->byte_clk_src = devm_clk_get(dev, "byte_clk_src");
+ if (IS_ERR(msm_host->byte_clk_src)) {
+ ret = PTR_ERR(msm_host->byte_clk_src);
+ pr_err("%s: can't find byte_clk_src. ret=%d\n", __func__, ret);
+ msm_host->byte_clk_src = NULL;
+ goto exit;
+ }
+
+ msm_host->pixel_clk_src = devm_clk_get(dev, "pixel_clk_src");
+ if (IS_ERR(msm_host->pixel_clk_src)) {
+ ret = PTR_ERR(msm_host->pixel_clk_src);
+ pr_err("%s: can't find pixel_clk_src. ret=%d\n", __func__, ret);
+ msm_host->pixel_clk_src = NULL;
+ goto exit;
+ }
+
exit:
return ret;
}
@@ -1513,15 +1532,9 @@
msm_host->workqueue = alloc_ordered_workqueue("dsi_drm_work", 0);
INIT_WORK(&msm_host->err_work, dsi_err_worker);
- msm_dsi->phy = msm_dsi_phy_init(pdev, msm_host->cfg->phy_type,
- msm_host->id);
- if (!msm_dsi->phy) {
- ret = -EINVAL;
- pr_err("%s: phy init failed\n", __func__);
- goto fail;
- }
msm_dsi->host = &msm_host->base;
msm_dsi->id = msm_host->id;
+ msm_dsi->phy_type = msm_host->cfg->phy_type;
DBG("Dsi Host %d initialized", msm_host->id);
return 0;
@@ -1829,6 +1842,39 @@
wmb();
}
+int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
+ struct msm_dsi_pll *src_pll)
+{
+ struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
+ struct clk *byte_clk_provider, *pixel_clk_provider;
+ int ret;
+
+ ret = msm_dsi_pll_get_clk_provider(src_pll,
+ &byte_clk_provider, &pixel_clk_provider);
+ if (ret) {
+ pr_info("%s: can't get provider from pll, don't set parent\n",
+ __func__);
+ return 0;
+ }
+
+ ret = clk_set_parent(msm_host->byte_clk_src, byte_clk_provider);
+ if (ret) {
+ pr_err("%s: can't set parent to byte_clk_src. ret=%d\n",
+ __func__, ret);
+ goto exit;
+ }
+
+ ret = clk_set_parent(msm_host->pixel_clk_src, pixel_clk_provider);
+ if (ret) {
+ pr_err("%s: can't set parent to pixel_clk_src. ret=%d\n",
+ __func__, ret);
+ goto exit;
+ }
+
+exit:
+ return ret;
+}
+
int msm_dsi_host_enable(struct mipi_dsi_host *host)
{
struct msm_dsi_host *msm_host = to_msm_dsi_host(host);