From: Laurent Pinchart Date: Wed, 18 Feb 2015 13:19:33 +0000 (+0200) Subject: drm: adv7511: Fix DDC error interrupt handling X-Git-Tag: v3.19.7~22 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=66908fde0cb392814bace26dbb9f0166d894509b;p=thirdparty%2Fkernel%2Fstable.git drm: adv7511: Fix DDC error interrupt handling commit 2e96206c4f952295e11c311fbb2a7aa2105024af upstream. The DDC error interrupt bit is located in REG_INT1, not REG_INT0. Update both the interrupt wait code and the interrupt sources reset code accordingly. Signed-off-by: Laurent Pinchart Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/gpu/drm/i2c/adv7511.c b/drivers/gpu/drm/i2c/adv7511.c index faf1c0c5ab2eb..c398178ec45b7 100644 --- a/drivers/gpu/drm/i2c/adv7511.c +++ b/drivers/gpu/drm/i2c/adv7511.c @@ -467,14 +467,16 @@ static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block, block); ret = adv7511_wait_for_interrupt(adv7511, ADV7511_INT0_EDID_READY | - ADV7511_INT1_DDC_ERROR, 200); + (ADV7511_INT1_DDC_ERROR << 8), 200); if (!(ret & ADV7511_INT0_EDID_READY)) return -EIO; } regmap_write(adv7511->regmap, ADV7511_REG_INT(0), - ADV7511_INT0_EDID_READY | ADV7511_INT1_DDC_ERROR); + ADV7511_INT0_EDID_READY); + regmap_write(adv7511->regmap, ADV7511_REG_INT(1), + ADV7511_INT1_DDC_ERROR); /* Break this apart, hopefully more I2C controllers will * support 64 byte transfers than 256 byte transfers @@ -528,7 +530,9 @@ static int adv7511_get_modes(struct drm_encoder *encoder, /* Reading the EDID only works if the device is powered */ if (adv7511->dpms_mode != DRM_MODE_DPMS_ON) { regmap_write(adv7511->regmap, ADV7511_REG_INT(0), - ADV7511_INT0_EDID_READY | ADV7511_INT1_DDC_ERROR); + ADV7511_INT0_EDID_READY); + regmap_write(adv7511->regmap, ADV7511_REG_INT(1), + ADV7511_INT1_DDC_ERROR); regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER, ADV7511_POWER_POWER_DOWN, 0); adv7511->current_edid_segment = -1; @@ -563,7 +567,9 @@ static void adv7511_encoder_dpms(struct drm_encoder *encoder, int mode) adv7511->current_edid_segment = -1; regmap_write(adv7511->regmap, ADV7511_REG_INT(0), - ADV7511_INT0_EDID_READY | ADV7511_INT1_DDC_ERROR); + ADV7511_INT0_EDID_READY); + regmap_write(adv7511->regmap, ADV7511_REG_INT(1), + ADV7511_INT1_DDC_ERROR); regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER, ADV7511_POWER_POWER_DOWN, 0); /*