UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

OMAPDSS: DSI: separate LP clock info from dsi_clock_info 

struct dsi_clock_info represents the clocks handled by the DSI, mostly
PLL related clocks. In an effort to create common PLL code, we need to
remove all the non-PLL items from dsi_clock_info.

This patch removes LP clock related fields from dsi_clock_info, and
creates a new struct dsi_lp_clock_info for holding clock info for the LP
clock.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2014-08-06 15:45:26 +03:00
parent 1a7f4bf186
commit 7b71c410b2
2 changed files with 19 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/video/fbdev/omap2/dss/dsi.c
View File

@ -287,6 +287,11 @@ struct dsi_clk_calc_ctx {
struct omap_dss_dsi_videomode_timings dsi_vm;
};
struct dsi_lp_clock_info {
unsigned long lp_clk;
u16 lp_clk_div;
};
struct dsi_data {
struct platform_device *pdev;
void __iomem *proto_base;
@ -307,6 +312,9 @@ struct dsi_data {
struct dsi_clock_info current_cinfo;
struct dsi_lp_clock_info user_lp_cinfo;
struct dsi_lp_clock_info current_lp_cinfo;
bool vdds_dsi_enabled;
struct regulator *vdds_dsi_reg;
@ -1293,10 +1301,10 @@ static unsigned long dsi_fclk_rate(struct platform_device *dsidev)
return r;
}
static int dsi_lp_clock_calc(struct dsi_clock_info *cinfo,
unsigned long lp_clk_min, unsigned long lp_clk_max)
static int dsi_lp_clock_calc(unsigned long dsi_fclk,
unsigned long lp_clk_min, unsigned long lp_clk_max,
struct dsi_lp_clock_info *lp_cinfo)
{
unsigned long dsi_fclk = cinfo->dsi_pll_hsdiv_dsi_clk;
unsigned lp_clk_div;
unsigned long lp_clk;
@ -1306,8 +1314,8 @@ static int dsi_lp_clock_calc(struct dsi_clock_info *cinfo,
if (lp_clk < lp_clk_min || lp_clk > lp_clk_max)
return -EINVAL;
cinfo->lp_clk_div = lp_clk_div;
cinfo->lp_clk = lp_clk;
lp_cinfo->lp_clk_div = lp_clk_div;
lp_cinfo->lp_clk = lp_clk;
return 0;
}
@ -1319,7 +1327,7 @@ static int dsi_set_lp_clk_divisor(struct platform_device *dsidev)
unsigned lp_clk_div;
unsigned long lp_clk;
lp_clk_div = dsi->user_dsi_cinfo.lp_clk_div;
lp_clk_div = dsi->user_lp_cinfo.lp_clk_div;
if (lp_clk_div == 0 || lp_clk_div > dsi->lpdiv_max)
return -EINVAL;
@ -1329,8 +1337,8 @@ static int dsi_set_lp_clk_divisor(struct platform_device *dsidev)
lp_clk = dsi_fclk / 2 / lp_clk_div;
DSSDBG("LP_CLK_DIV %u, LP_CLK %lu\n", lp_clk_div, lp_clk);
dsi->current_cinfo.lp_clk = lp_clk;
dsi->current_cinfo.lp_clk_div = lp_clk_div;
dsi->current_lp_cinfo.lp_clk = lp_clk;
dsi->current_lp_cinfo.lp_clk_div = lp_clk_div;
/* LP_CLK_DIVISOR */
REG_FLD_MOD(dsidev, DSI_CLK_CTRL, lp_clk_div, 12, 0);
@ -1801,7 +1809,7 @@ static void dsi_dump_dsidev_clocks(struct platform_device *dsidev,
seq_printf(s, "TxByteClkHS\t%lu\n", dsi_get_txbyteclkhs(dsidev));
seq_printf(s, "LP_CLK\t\t%lu\n", cinfo->lp_clk);
seq_printf(s, "LP_CLK\t\t%lu\n", dsi->current_lp_cinfo.lp_clk);
dsi_runtime_put(dsidev);
}
@ -5110,8 +5118,8 @@ static int dsi_set_config(struct omap_dss_device *dssdev,
dsi_pll_calc_dsi_fck(&ctx.dsi_cinfo);
r = dsi_lp_clock_calc(&ctx.dsi_cinfo, config->lp_clk_min,
config->lp_clk_max);
r = dsi_lp_clock_calc(ctx.dsi_cinfo.dsi_pll_hsdiv_dsi_clk,
config->lp_clk_min, config->lp_clk_max, &dsi->user_lp_cinfo);
if (r) {
DSSERR("failed to find suitable DSI LP clock settings\n");
goto err;

2
drivers/video/fbdev/omap2/dss/dss.h
View File

@ -119,7 +119,6 @@ struct dsi_clock_info {
* OMAP4: PLLx_CLK1 */
unsigned long dsi_pll_hsdiv_dsi_clk; /* OMAP3: DSI2_PLL_CLK
* OMAP4: PLLx_CLK2 */
unsigned long lp_clk;
/* dividers */
u16 regn;
@ -128,7 +127,6 @@ struct dsi_clock_info {
* OMAP4: REGM4 */
u16 regm_dsi; /* OMAP3: REGM4
* OMAP4: REGM5 */
u16 lp_clk_div;
};
struct dss_lcd_mgr_config {