From e8dbad6d506b6fac992fdf74a7e3a66a38e554c3 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Thu, 27 Apr 2023 09:30:33 +0200 Subject: [PATCH] drm/vc4: txp: Add byte enable toggle bit The MOPLET doesn't have the BYTE_ENABLE field to set, but the TXP and MOP do, so let's add a boolean to control whether or not we need to set it. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/vc4_drv.h | 1 + drivers/gpu/drm/vc4/vc4_txp.c | 6 +++++- 2 files changed, 6 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -563,6 +563,7 @@ struct vc4_crtc_data { struct vc4_txp_data { struct vc4_crtc_data base; + unsigned int has_byte_enable:1; }; extern const struct vc4_txp_data bcm2835_txp_data; --- a/drivers/gpu/drm/vc4/vc4_txp.c +++ b/drivers/gpu/drm/vc4/vc4_txp.c @@ -291,6 +291,7 @@ static void vc4_txp_connector_atomic_com struct drm_connector_state *conn_state = drm_atomic_get_new_connector_state(state, conn); struct vc4_txp *txp = connector_to_vc4_txp(conn); + const struct vc4_txp_data *txp_data = txp->data; struct drm_gem_dma_object *gem; struct drm_display_mode *mode; struct drm_framebuffer *fb; @@ -313,9 +314,11 @@ static void vc4_txp_connector_atomic_com return; ctrl = TXP_GO | TXP_EI | - VC4_SET_FIELD(0xf, TXP_BYTE_ENABLE) | VC4_SET_FIELD(txp_fmts[i], TXP_FORMAT); + if (txp_data->has_byte_enable) + ctrl |= VC4_SET_FIELD(0xf, TXP_BYTE_ENABLE); + if (fb->format->has_alpha) ctrl |= TXP_ALPHA_ENABLE; else @@ -496,6 +499,7 @@ const struct vc4_txp_data bcm2835_txp_da .hvs_available_channels = BIT(2), .hvs_output = 2, }, + .has_byte_enable = true, }; static int vc4_txp_bind(struct device *dev, struct device *master, void *data)