New Qualcomm firmware has changed a way it reports back the 'started' event. Support new register values.
Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org --- drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c index b67b38c8fadf..0df56292e227 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c @@ -204,6 +204,16 @@ static int a6xx_gmu_start(struct a6xx_gmu *gmu) { int ret; u32 val; + u32 mask, reset_val; + + val = gmu_read(gmu, REG_A6XX_GMU_CM3_DTCM_START + 0xff8); + if (val <= 0x20010004) { + mask = 0xffffffff; + reset_val = 0xbabeface; + } else { + mask = 0x1ff; + reset_val = 0x100; + }
gmu_write(gmu, REG_A6XX_GMU_CM3_SYSRESET, 1);
@@ -215,7 +225,7 @@ static int a6xx_gmu_start(struct a6xx_gmu *gmu) gmu_write(gmu, REG_A6XX_GMU_CM3_SYSRESET, 0);
ret = gmu_poll_timeout(gmu, REG_A6XX_GMU_CM3_FW_INIT_RESULT, val, - val == 0xbabeface, 100, 10000); + (val & mask) == reset_val, 100, 10000);
if (ret) DRM_DEV_ERROR(gmu->dev, "GMU firmware initialization timed out\n");