diff options
| author | Ronak Kanabar <ronak.kanabar@intel.com> | 2020-04-02 16:03:41 +0530 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2020-04-06 11:06:53 +0000 |
| commit | b6a523927d58c13b7a0bf6c8d20ef29a43e1aa95 (patch) | |
| tree | 8cdbb813ff1738d61a1d22de58462ebc08488bf1 /src/soc | |
| parent | e8d483923baed00fbc16de38e6532f4cc27cdc9b (diff) | |
soc/intel/jasperlake: Remove DDI A lane programming
For newer Intel graphics (>=11), the DDI port max lanes default to 4.
And kernel driver no longer relies on coreboot to provide information
via DDI_BUF_CTL_A (for DDI port A) register programming. Hence removing
this code.
BUG=b:150788968
BRANCH=None
TEST=checked jslrvp compilation and boot.
Change-Id: I4c171ec6a57d6fc53bee88420bfb3c0fbc5dc057
Signed-off-by: Ronak Kanabar <ronak.kanabar@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40038
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Aamir Bohra <aamir.bohra@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/jasperlake/graphics.c | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/src/soc/intel/jasperlake/graphics.c b/src/soc/intel/jasperlake/graphics.c index 4f5d573c8b..0ee340ce3b 100644 --- a/src/soc/intel/jasperlake/graphics.c +++ b/src/soc/intel/jasperlake/graphics.c @@ -19,7 +19,6 @@ #include <device/device.h> #include <device/pci.h> #include <device/pci_ops.h> -#include <drivers/intel/gma/i915_reg.h> #include <drivers/intel/gma/opregion.h> #include <intelblocks/graphics.h> #include <types.h> @@ -31,24 +30,6 @@ uintptr_t fsp_soc_get_igd_bar(void) void graphics_soc_init(struct device *dev) { - uint32_t ddi_buf_ctl; - - /* Skip IGD GT programming */ - if (CONFIG(SKIP_GRAPHICS_ENABLING)) - return; - - /* - * Enable DDI-A (eDP) 4-lane operation if the link is not up yet. - * This will allow the kernel to use 4-lane eDP links properly - * if the VBIOS or GOP driver do not execute. - */ - ddi_buf_ctl = graphics_gtt_read(DDI_BUF_CTL_A); - if (!acpi_is_wakeup_s3() && !(ddi_buf_ctl & DDI_BUF_CTL_ENABLE)) { - ddi_buf_ctl |= (DDI_A_4_LANES | DDI_INIT_DISPLAY_DETECTED | - DDI_BUF_IS_IDLE); - graphics_gtt_write(DDI_BUF_CTL_A, ddi_buf_ctl); - } - /* * GFX PEIM module inside FSP binary is taking care of graphics * initialization based on RUN_FSP_GOP Kconfig |