diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/805-display-0020-drm-bridge-cdns-cec-fix-LA-failed-set-issue.patch')
-rw-r--r-- | target/linux/layerscape/patches-5.4/805-display-0020-drm-bridge-cdns-cec-fix-LA-failed-set-issue.patch | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/target/linux/layerscape/patches-5.4/805-display-0020-drm-bridge-cdns-cec-fix-LA-failed-set-issue.patch b/target/linux/layerscape/patches-5.4/805-display-0020-drm-bridge-cdns-cec-fix-LA-failed-set-issue.patch deleted file mode 100644 index ec36c571da..0000000000 --- a/target/linux/layerscape/patches-5.4/805-display-0020-drm-bridge-cdns-cec-fix-LA-failed-set-issue.patch +++ /dev/null @@ -1,129 +0,0 @@ -From 4e8d26c363c6e4b8b89d21feeb8c6dc57085b27d Mon Sep 17 00:00:00 2001 -From: Sandor Yu <Sandor.yu@nxp.com> -Date: Fri, 27 Sep 2019 17:15:34 +0800 -Subject: [PATCH] drm: bridge: cdns cec: fix LA failed set issue - -improved function set_logical_addr() function. -Fix LA set failed issue in some case. - -Signed-off-by: Sandor Yu <Sandor.yu@nxp.com> ---- - drivers/gpu/drm/bridge/cadence/Kconfig | 6 ++++ - drivers/gpu/drm/bridge/cadence/cdns-mhdp-cec.c | 38 +++++++++++--------------- - 2 files changed, 22 insertions(+), 22 deletions(-) - ---- a/drivers/gpu/drm/bridge/cadence/Kconfig -+++ b/drivers/gpu/drm/bridge/cadence/Kconfig -@@ -8,12 +8,18 @@ config DRM_CDNS_MHDP - - config DRM_CDNS_HDMI - tristate "Cadence HDMI DRM driver" -+ depends on DRM_CDNS_MHDP - - config DRM_CDNS_DP - tristate "Cadence DP DRM driver" -+ depends on DRM_CDNS_MHDP - - config DRM_CDNS_AUDIO - tristate "Cadence MHDP Audio driver" -+ depends on DRM_CDNS_MHDP - - config DRM_CDNS_HDMI_CEC - tristate "Cadence MHDP HDMI CEC driver" -+ depends on DRM_CDNS_HDMI -+ select CEC_CORE -+ select CEC_NOTIFIER ---- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp-cec.c -+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-cec.c -@@ -20,8 +20,6 @@ - #define CEC_NAME "cdns-mhdp-cec" - - #define REG_ADDR_OFF 4 --#define MAX_LA_IDX 4 --#define MAX_LA_VAL 15 - - /* regsiter define */ - #define TX_MSG_HEADER 0x33800 -@@ -158,26 +156,22 @@ static u32 mhdp_cec_write_message(struct - return true; - } - --//static void cec_abort_tx_transfer(struct cdns_mhdp_cec *cec) --//{ --// cec_write(cec, TX_MSG_CMD, CEC_TX_ABORT); --// cec_write(cec, TX_MSG_CMD, CEC_TX_STOP); --//} -- - static int mhdp_cec_set_logical_addr(struct cdns_mhdp_cec *cec, u32 la) - { -- u8 i; - u8 la_reg; -+ u8 i; - -- if (la >= MAX_LA_VAL) { -- dev_err(cec->dev, "Error logical Addr\n"); -- return -EINVAL; -- } -- -- for (i = 0; i < MAX_LA_IDX; ++i) { -- la_reg = -- mhdp_cec_read(cec, LOGICAL_ADDRESS_LA0 + (i * REG_ADDR_OFF)); -+ if (la == CEC_LOG_ADDR_INVALID) -+ /* invalid all LA address */ -+ for (i = 0; i < CEC_MAX_LOG_ADDRS; ++i) { -+ mhdp_cec_write(cec, LOGICAL_ADDRESS_LA0 + (i * REG_ADDR_OFF), 0); -+ return 0; -+ } - -+ /* In fact cdns mhdp cec could support max 5 La address */ -+ for (i = 0; i < CEC_MAX_LOG_ADDRS; ++i) { -+ la_reg = mhdp_cec_read(cec, LOGICAL_ADDRESS_LA0 + (i * REG_ADDR_OFF)); -+ /* Check LA already used */ - if (la_reg & 0x10) - continue; - -@@ -194,7 +188,7 @@ static int mhdp_cec_set_logical_addr(str - - dev_warn(cec->dev, "All LA in use\n"); - -- return -EINVAL; -+ return -ENXIO; - } - - static int mhdp_cec_poll_worker(void *_cec) -@@ -263,7 +257,7 @@ static int mhdp_cec_poll_worker(void *_c - - static int mhdp_cec_adap_enable(struct cec_adapter *adap, bool enable) - { -- struct cdns_mhdp_cec *cec = adap->priv; -+ struct cdns_mhdp_cec *cec = cec_get_drvdata(adap); - - if (enable) { - mhdp_cec_write(cec, DB_L_TIMER, 0x10); -@@ -276,7 +270,7 @@ static int mhdp_cec_adap_enable(struct c - - static int mhdp_cec_adap_log_addr(struct cec_adapter *adap, u8 addr) - { -- struct cdns_mhdp_cec *cec = adap->priv; -+ struct cdns_mhdp_cec *cec = cec_get_drvdata(adap); - - return mhdp_cec_set_logical_addr(cec, addr); - } -@@ -284,7 +278,7 @@ static int mhdp_cec_adap_log_addr(struct - static int mhdp_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, - u32 signal_free_time, struct cec_msg *msg) - { -- struct cdns_mhdp_cec *cec = adap->priv; -+ struct cdns_mhdp_cec *cec = cec_get_drvdata(adap); - - mhdp_cec_write_message(cec, msg); - -@@ -307,7 +301,7 @@ int cdns_mhdp_register_cec_driver(struct - CEC_NAME, - CEC_CAP_PHYS_ADDR | CEC_CAP_LOG_ADDRS | - CEC_CAP_TRANSMIT | CEC_CAP_PASSTHROUGH -- | CEC_CAP_RC, 1); -+ | CEC_CAP_RC, CEC_MAX_LOG_ADDRS); - ret = PTR_ERR_OR_ZERO(cec->adap); - if (ret) - return ret; |