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drm/rockchip: vop2: Support set dclk parent

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Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Change-Id: Iaeab80e58a9dd89efb1e5482a2edee65885fd1df
This commit is contained in:
Andy Yan
2021-12-23 20:59:04 +08:00
committed by Tao Huang
parent af7b773991
commit f2b2283cd0
1 changed files with 53 additions and 6 deletions
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59
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
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@@ -487,8 +487,9 @@ struct vop2_wb_connector_state {
struct vop2_video_port {
struct rockchip_crtc rockchip_crtc;
struct vop2 *vop2;
struct clk *dclk;
struct reset_control *dclk_rst;
struct clk *dclk;
struct clk *dclk_parent;
uint8_t id;
bool layer_sel_update;
const struct vop2_video_port_regs *regs;
@@ -709,6 +710,8 @@ struct vop2 {
struct clk *hclk;
struct clk *aclk;
struct clk *pclk;
struct clk *hdmi0_phy_pll;
struct clk *hdmi1_phy_pll;
struct reset_control *ahb_rst;
struct reset_control *axi_rst;
@@ -5282,6 +5285,17 @@ static int vop2_cru_set_rate(struct vop2_clk *if_pixclk, struct vop2_clk *if_dcl
return ret;
}
static void vop2_clk_set_parent(struct clk *clk, struct clk *parent)
{
int ret = 0;
if (parent)
ret = clk_set_parent(clk, parent);
if (ret < 0)
DRM_WARN("failed to set %s as parent for %s\n",
__clk_get_name(parent), __clk_get_name(clk));
}
static int vop2_set_dsc_clk(struct drm_crtc *crtc, u8 dsc_id)
{
struct vop2_video_port *vp = to_vop2_video_port(crtc);
@@ -6183,6 +6197,18 @@ static void vop2_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state
snprintf(clk_name, sizeof(clk_name), "dclk%d", vp->id);
dclk = vop2_clk_get(vop2, clk_name);
if (dclk) {
/*
* use HDMI_PHY_PLL as dclk source under 4K@60
* otherwise use system cru as dclk source.
*/
if (vcstate->output_type == DRM_MODE_CONNECTOR_HDMIA) {
if (adjusted_mode->crtc_clock > VOP2_MAX_DCLK_RATE)
vop2_clk_set_parent(vp->dclk, vp->dclk_parent);
else if (vcstate->output_if & VOP_OUTPUT_IF_HDMI0)
vop2_clk_set_parent(vp->dclk, vop2->hdmi0_phy_pll);
else if (vcstate->output_if & VOP_OUTPUT_IF_HDMI1)
vop2_clk_set_parent(vp->dclk, vop2->hdmi1_phy_pll);
}
clk_set_rate(vp->dclk, dclk->rate);
DRM_DEV_INFO(vop2->dev, "set %s to %ld, get %ld\n",
__clk_get_name(vp->dclk), dclk->rate, clk_get_rate(vp->dclk));
@@ -8206,7 +8232,7 @@ static int vop2_create_crtc(struct vop2 *vop2)
uint32_t possible_crtcs;
uint64_t soc_id;
uint32_t registered_num_crtcs = 0;
char dclk_name[9];
char clk_name[16];
int i = 0, j = 0, k = 0;
int ret = 0;
bool be_used_for_primary_plane = false;
@@ -8259,16 +8285,23 @@ static int vop2_create_crtc(struct vop2 *vop2)
else
soc_id = vp_data->soc_id[0];
snprintf(dclk_name, sizeof(dclk_name), "dclk_vp%d", vp->id);
vp->dclk_rst = devm_reset_control_get_optional(vop2->dev, dclk_name);
snprintf(clk_name, sizeof(clk_name), "dclk_vp%d", vp->id);
vp->dclk_rst = devm_reset_control_get_optional(vop2->dev, clk_name);
if (IS_ERR(vp->dclk_rst)) {
DRM_DEV_ERROR(vop2->dev, "failed to get dclk reset\n");
return PTR_ERR(vp->dclk_rst);
}
vp->dclk = devm_clk_get(vop2->dev, dclk_name);
vp->dclk = devm_clk_get(vop2->dev, clk_name);
if (IS_ERR(vp->dclk)) {
DRM_DEV_ERROR(vop2->dev, "failed to get %s\n", dclk_name);
DRM_DEV_ERROR(vop2->dev, "failed to get %s\n", clk_name);
return PTR_ERR(vp->dclk);
}
snprintf(clk_name, sizeof(clk_name), "dclk_src_vp%d", vp->id);
vp->dclk_parent = devm_clk_get_optional(vop2->dev, clk_name);
if (IS_ERR(vp->dclk)) {
DRM_DEV_ERROR(vop2->dev, "failed to get %s\n", clk_name);
return PTR_ERR(vp->dclk);
}
@@ -8706,6 +8739,20 @@ static int vop2_bind(struct device *dev, struct device *master, void *data)
return PTR_ERR(vop2->pclk);
}
vop2->hdmi0_phy_pll = devm_clk_get_optional(vop2->dev, "hdmi0_phy_pll");
if (IS_ERR(vop2->hdmi0_phy_pll)) {
dev_warn(vop2->dev, "failed to get hdmi0_phy_pll: %ld\n",
PTR_ERR(vop2->hdmi0_phy_pll));
vop2->hdmi0_phy_pll = NULL;
}
vop2->hdmi1_phy_pll = devm_clk_get_optional(vop2->dev, "hdmi1_phy_pll");
if (IS_ERR(vop2->hdmi1_phy_pll)) {
dev_warn(vop2->dev, "failed to get hdmi1_phy_pll: %ld\n",
PTR_ERR(vop2->hdmi1_phy_pll));
vop2->hdmi1_phy_pll = NULL;
}
vop2->ahb_rst = devm_reset_control_get_optional(vop2->dev, "ahb");
if (IS_ERR(vop2->ahb_rst)) {
DRM_DEV_ERROR(vop2->dev, "failed to get ahb reset\n");