diff options
| author | Lawrence Yu <lyu@micile.com> | 2016-03-04 09:08:56 -0800 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2016-03-23 22:04:13 +0100 |
| commit | cf6eca7ccd9025e9f34f179682516f1e5d7e0e78 (patch) | |
| tree | fdc42d22c650d6b44a6266e4366b77565b7f2ccd /drivers/video/sunxi_display.c | |
| parent | 70fe24ed93fa90eb407d18a5fc9d9ad85ac9184c (diff) | |
sunxi: Configure only LVDS pins instead of all LCD pins when LVDS interface selected
The behavior before this patch would attempt to configure the mux
setting for pins 0 to 27 on PORTD to all be setting 3 for LVDS. The
LVDS interface actually only uses pins 18 to 27 and not pins 0 to 27
as in the parallel LCD interface. This patch restricts the
configuration to only the relevant pins 18 to 27 on PORTD.
This was tested on a sun8i A33 tablet with an LVDS screen. MMC1 has
the capability to use pins 2 to 7 on PORTD and the mux on those pins
was being inadvertently set to setting 3 for MMC functionality which
this patch corrects.
Signed-off-by: Lawrence Yu <lyu@micile.com>
[hdegoede@redhat.com: Only apply this change to A23 / A33]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/video/sunxi_display.c')
| -rw-r--r-- | drivers/video/sunxi_display.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c index 9fee66a2a4..56f6c8e349 100644 --- a/drivers/video/sunxi_display.c +++ b/drivers/video/sunxi_display.c @@ -767,7 +767,11 @@ static void sunxi_lcdc_tcon0_mode_set(const struct ctfb_res_modes *mode, (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE; int bp, clk_delay, clk_div, clk_double, pin, total, val; +#if defined CONFIG_MACH_SUN8I && defined CONFIG_VIDEO_LCD_IF_LVDS + for (pin = SUNXI_GPD(18); pin <= SUNXI_GPD(27); pin++) { +#else for (pin = SUNXI_GPD(0); pin <= SUNXI_GPD(27); pin++) { +#endif #ifdef CONFIG_VIDEO_LCD_IF_PARALLEL sunxi_gpio_set_cfgpin(pin, SUNXI_GPD_LCD0); #endif |