OMAPDSS: DSI: add new clock calculation code
Add new way to iterate over DSI PLL and HSDIV clock divisors.
dsi_pll_calc() and dss_hsdiv_calc() provide a generic way to go over
all the divisors, within given clock range. The functions will call a
callback function for each divider set, making the function reusable for
all use cases.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 4180302..dde6cc1 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -295,6 +295,18 @@
void dsi_irq_handler(void);
u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt);
+unsigned long dsi_get_pll_clkin(struct platform_device *dsidev);
+
+typedef bool (*dsi_pll_calc_func)(int regn, int regm, unsigned long fint,
+ unsigned long pll, void *data);
+typedef bool (*dsi_hsdiv_calc_func)(int regm_dispc, unsigned long dispc,
+ void *data);
+bool dsi_hsdiv_calc(struct platform_device *dsidev, unsigned long pll,
+ unsigned long out_min, dsi_hsdiv_calc_func func, void *data);
+bool dsi_pll_calc(struct platform_device *dsidev, unsigned long clkin,
+ unsigned long pll_min, unsigned long pll_max,
+ dsi_pll_calc_func func, void *data);
+
unsigned long dsi_get_pll_hsdiv_dispc_rate(struct platform_device *dsidev);
int dsi_pll_set_clock_div(struct platform_device *dsidev,
struct dsi_clock_info *cinfo);