@@ -428,6 +428,8 @@ typedef bool (*dss_hsdiv_calc_func)(int m_dispc, unsigned long dispc,
int dss_pll_register(struct dss_pll *pll);
void dss_pll_unregister(struct dss_pll *pll);
struct dss_pll *dss_pll_find(const char *name);
+struct dss_pll *dss_pll_find_by_src(enum dss_clk_source src);
+unsigned dss_pll_get_clkout_idx_for_src(enum dss_clk_source src);
int dss_pll_enable(struct dss_pll *pll);
void dss_pll_disable(struct dss_pll *pll);
int dss_pll_set_config(struct dss_pll *pll,
@@ -76,6 +76,59 @@ struct dss_pll *dss_pll_find(const char *name)
return NULL;
}
+struct dss_pll *dss_pll_find_by_src(enum dss_clk_source src)
+{
+ struct dss_pll *pll;
+
+ switch (src) {
+ default:
+ case DSS_CLK_SRC_FCK:
+ return NULL;
+
+ case DSS_CLK_SRC_HDMI_PLL:
+ return dss_pll_find("hdmi");
+
+ case DSS_CLK_SRC_PLL1_1:
+ case DSS_CLK_SRC_PLL1_2:
+ case DSS_CLK_SRC_PLL1_3:
+ pll = dss_pll_find("dsi0");
+ if (!pll)
+ pll = dss_pll_find("video0");
+ return pll;
+
+ case DSS_CLK_SRC_PLL2_1:
+ case DSS_CLK_SRC_PLL2_2:
+ case DSS_CLK_SRC_PLL2_3:
+ pll = dss_pll_find("dsi1");
+ if (!pll)
+ pll = dss_pll_find("video1");
+ return pll;
+ }
+}
+
+unsigned dss_pll_get_clkout_idx_for_src(enum dss_clk_source src)
+{
+ switch (src) {
+ case DSS_CLK_SRC_HDMI_PLL:
+ return 0;
+
+ case DSS_CLK_SRC_PLL1_1:
+ case DSS_CLK_SRC_PLL2_1:
+ return 0;
+
+ case DSS_CLK_SRC_PLL1_2:
+ case DSS_CLK_SRC_PLL2_2:
+ return 1;
+
+ case DSS_CLK_SRC_PLL1_3:
+ case DSS_CLK_SRC_PLL2_3:
+ return 2;
+
+ default:
+ return 0;
+ }
+}
+
int dss_pll_enable(struct dss_pll *pll)
{
int r;
Add two PLL helper functions: dss_pll_find_by_src() which returns the dss_pll for the given dss_clk_source. dss_pll_get_clkout_idx_for_src() which returns the clkout index for the given dss_clk_source. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> --- drivers/gpu/drm/omapdrm/dss/dss.h | 2 ++ drivers/gpu/drm/omapdrm/dss/pll.c | 53 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+)