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drm/i915/dsi: use generic poll_timeout_us() instead of wait_for_us()

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Prefer generic poll helpers over i915 custom helpers.

The sleep and timeout remain the same as for wait_for_us().

Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/02ebcd2864819b7eaf9cf455aa2b968980a2f671.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Jani Nikula 2025-08-28 15:20:46 +03:00
parent e54d34e4b3
commit 17d56494c1
1 changed files with 14 additions and 4 deletions
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18
drivers/gpu/drm/i915/display/icl_dsi.c
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@ -25,6 +25,8 @@
* Jani Nikula <jani.nikula@intel.com>
*/
#include <linux/iopoll.h>
#include <drm/display/drm_dsc_helper.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_fixed.h>
@ -72,8 +74,12 @@ static int payload_credits_available(struct intel_display *display,
static bool wait_for_header_credits(struct intel_display *display,
enum transcoder dsi_trans, int hdr_credit)
{
if (wait_for_us(header_credits_available(display, dsi_trans) >=
hdr_credit, 100)) {
int ret, available;
ret = poll_timeout_us(available = header_credits_available(display, dsi_trans),
available >= hdr_credit,
10, 100, false);
if (ret) {
drm_err(display->drm, "DSI header credits not released\n");
return false;
}
@ -84,8 +90,12 @@ static bool wait_for_header_credits(struct intel_display *display,
static bool wait_for_payload_credits(struct intel_display *display,
enum transcoder dsi_trans, int payld_credit)
{
if (wait_for_us(payload_credits_available(display, dsi_trans) >=
payld_credit, 100)) {
int ret, available;
ret = poll_timeout_us(available = payload_credits_available(display, dsi_trans),
available >= payld_credit,
10, 100, false);
if (ret) {
drm_err(display->drm, "DSI payload credits not released\n");
return false;
}