redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

OMAPDSS: HDMI: Remove HDMI PLL reset

Browse source 
The SYSRESET bits in HDMI PLL do not reset the PLL itself, but only
affect the power used for the PLL.

Afaik there is no reason to use the SYSRESET bits, and we don't use it
in the other PLLs, so let's remove the HDMI PLL reset to make the PLL
code simpler and similar to other PLLs.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2014-11-10 12:28:57 +02:00
parent 33f13120e5
commit b0295f165f
1 changed files with 0 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
drivers/video/fbdev/omap2/dss/hdmi_pll.c
View file

@ -166,21 +166,6 @@ static int hdmi_pll_config(struct hdmi_pll_data *pll)
return 0;
}
static int hdmi_pll_reset(struct hdmi_pll_data *pll)
{
/* SYSRESET controlled by power FSM */
REG_FLD_MOD(pll->base, PLLCTRL_PLL_CONTROL, pll_feat->sys_reset, 3, 3);
/* READ 0x0 reset is in progress */
if (hdmi_wait_for_bit_change(pll->base, PLLCTRL_PLL_STATUS, 0, 0, 1)
!= 1) {
DSSERR("Failed to sysreset PLL\n");
return -ETIMEDOUT;
}
return 0;
}
int hdmi_pll_enable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp)
{
u16 r = 0;
@ -193,10 +178,6 @@ int hdmi_pll_enable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp)
if (r)
return r;
r = hdmi_pll_reset(pll);
if (r)
return r;
r = hdmi_pll_config(pll);
if (r)
return r;