From 43ae50978ab0f9a7cbde6f1e9fe045dc4815cd54 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Sun, 3 Nov 2019 18:31:02 +0100 Subject: [PATCH] mac80211: rt2x00: remove errornous duplicate condition https://patchwork.kernel.org/patch/11224189/ -- On 2019-10-28 06:07, wbob wrote: > Hello Roman, > > while reading around drivers/net/wireless/ralink/rt2x00/rt2800lib.c > I stumbled on what I think is an edit of yours made in error in march > 2017: > > https://github.com/torvalds/linux/commit/41977e86#diff-dae5dc10da180f3b055809a48118e18aR5281 > > RT6352 in line 5281 should not have been introduced as the "else if" > below line 5291 can then not take effect for a RT6352 device. Another > possibility is for line 5291 to be not for RT6352, but this seems > very unlikely. Are you able to clarify still after this substantial time? > > 5277: static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev) > ... > 5279: } else if (rt2x00_rt(rt2x00dev, RT5390) || > 5280: rt2x00_rt(rt2x00dev, RT5392) || > 5281: rt2x00_rt(rt2x00dev, RT6352)) { > ... > 5291: } else if (rt2x00_rt(rt2x00dev, RT6352)) { > ... Hence remove errornous line 5281 to make the driver actually execute the correct initialization routine for MT7620 chips. As it was requested by Stanislaw Gruszka remove setting values of MIMO_PS_CFG and TX_PIN_CFG. MIMO_PS_CFG is responsible for MIMO power-safe mode (which is disabled), hence we can drop setting it. TX_PIN_CFG is set correctly in other functions, and as setting this value breaks some devices, rather don't set it here during init, but only modify it later on. Fixes: 41977e86c984 ("rt2x00: add support for MT7620") Reported-by: wbob Reported-by: Roman Yeryomin Signed-off-by: Daniel Golle Acked-by: Stanislaw Gruszka -- Signed-off-by: Daniel Golle --- ...remove-errornous-duplicate-condition.patch | 88 +++++++++++++++++++ ...0-rt2x00-change-led-polarity-from-OF.patch | 2 +- ...dd-support-for-external-PA-on-MT7620.patch | 4 +- ...-rt2x00-add-rf-self-txdc-calibration.patch | 4 +- .../rt2x00/983-rt2x00-add-r-calibration.patch | 4 +- .../984-rt2x00-add-rxdcoc-calibration.patch | 4 +- .../985-rt2x00-add-rxiq-calibration.patch | 4 +- .../986-rt2x00-add-TX-LOFT-calibration.patch | 4 +- 8 files changed, 101 insertions(+), 13 deletions(-) create mode 100644 package/kernel/mac80211/patches/rt2x00/020-rt2800-remove-errornous-duplicate-condition.patch diff --git a/package/kernel/mac80211/patches/rt2x00/020-rt2800-remove-errornous-duplicate-condition.patch b/package/kernel/mac80211/patches/rt2x00/020-rt2800-remove-errornous-duplicate-condition.patch new file mode 100644 index 0000000000..91d12b51a2 --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/020-rt2800-remove-errornous-duplicate-condition.patch @@ -0,0 +1,88 @@ +From patchwork Sat Nov 2 17:47:01 2019 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +X-Patchwork-Submitter: Daniel Golle +X-Patchwork-Id: 11224189 +X-Patchwork-Delegate: kvalo@adurom.com +Return-Path: +Date: Sat, 2 Nov 2019 18:47:01 +0100 +From: Daniel Golle +To: Stanislaw Gruszka +Cc: linux-wireless@vger.kernel.org, Roman Yeryomin , + wbob +Subject: [PATCH v2] rt2800: remove errornous duplicate condition +Message-ID: <20191102174701.GA1489@makrotopia.org> +References: <20191102154639.GA4589@redhat.com> +MIME-Version: 1.0 +Content-Disposition: inline +In-Reply-To: <20191102154639.GA4589@redhat.com> +User-Agent: Mutt/1.12.2 (2019-09-21) +Sender: linux-wireless-owner@vger.kernel.org +Precedence: bulk +List-ID: +X-Mailing-List: linux-wireless@vger.kernel.org + +On 2019-10-28 06:07, wbob wrote: +> Hello Roman, +> +> while reading around drivers/net/wireless/ralink/rt2x00/rt2800lib.c +> I stumbled on what I think is an edit of yours made in error in march +> 2017: +> +> https://github.com/torvalds/linux/commit/41977e86#diff-dae5dc10da180f3b055809a48118e18aR5281 +> +> RT6352 in line 5281 should not have been introduced as the "else if" +> below line 5291 can then not take effect for a RT6352 device. Another +> possibility is for line 5291 to be not for RT6352, but this seems +> very unlikely. Are you able to clarify still after this substantial time? +> +> 5277: static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev) +> ... +> 5279: } else if (rt2x00_rt(rt2x00dev, RT5390) || +> 5280: rt2x00_rt(rt2x00dev, RT5392) || +> 5281: rt2x00_rt(rt2x00dev, RT6352)) { +> ... +> 5291: } else if (rt2x00_rt(rt2x00dev, RT6352)) { +> ... + +Hence remove errornous line 5281 to make the driver actually +execute the correct initialization routine for MT7620 chips. + +As it was requested by Stanislaw Gruszka remove setting values of +MIMO_PS_CFG and TX_PIN_CFG. MIMO_PS_CFG is responsible for MIMO +power-safe mode (which is disabled), hence we can drop setting it. +TX_PIN_CFG is set correctly in other functions, and as setting this +value breaks some devices, rather don't set it here during init, but +only modify it later on. + +Fixes: 41977e86c984 ("rt2x00: add support for MT7620") +Reported-by: wbob +Reported-by: Roman Yeryomin +Signed-off-by: Daniel Golle +Acked-by: Stanislaw Gruszka +--- + drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 5 +---- + 1 file changed, 1 insertion(+), 4 deletions(-) + +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +@@ -5839,8 +5839,7 @@ static int rt2800_init_registers(struct + rt2800_register_write(rt2x00dev, TX_TXBF_CFG_0, 0x8000fc21); + rt2800_register_write(rt2x00dev, TX_TXBF_CFG_3, 0x00009c40); + } else if (rt2x00_rt(rt2x00dev, RT5390) || +- rt2x00_rt(rt2x00dev, RT5392) || +- rt2x00_rt(rt2x00dev, RT6352)) { ++ rt2x00_rt(rt2x00dev, RT5392)) { + rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000404); + rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x00080606); + rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000); +@@ -5854,8 +5853,6 @@ static int rt2800_init_registers(struct + rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000401); + rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x000C0000); + rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000); +- rt2800_register_write(rt2x00dev, MIMO_PS_CFG, 0x00000002); +- rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0x00150F0F); + rt2800_register_write(rt2x00dev, TX_ALC_VGA3, 0x00000000); + rt2800_register_write(rt2x00dev, TX0_BB_GAIN_ATTEN, 0x0); + rt2800_register_write(rt2x00dev, TX1_BB_GAIN_ATTEN, 0x0); diff --git a/package/kernel/mac80211/patches/rt2x00/610-rt2x00-change-led-polarity-from-OF.patch b/package/kernel/mac80211/patches/rt2x00/610-rt2x00-change-led-polarity-from-OF.patch index 0efd3a157d..fb6647350e 100644 --- a/package/kernel/mac80211/patches/rt2x00/610-rt2x00-change-led-polarity-from-OF.patch +++ b/package/kernel/mac80211/patches/rt2x00/610-rt2x00-change-led-polarity-from-OF.patch @@ -8,7 +8,7 @@ #include "rt2x00.h" #include "rt2800lib.h" -@@ -9534,6 +9535,17 @@ static int rt2800_init_eeprom(struct rt2 +@@ -9531,6 +9532,17 @@ static int rt2800_init_eeprom(struct rt2 rt2800_init_led(rt2x00dev, &rt2x00dev->led_assoc, LED_TYPE_ASSOC); rt2800_init_led(rt2x00dev, &rt2x00dev->led_qual, LED_TYPE_QUALITY); diff --git a/package/kernel/mac80211/patches/rt2x00/650-rt2x00-add-support-for-external-PA-on-MT7620.patch b/package/kernel/mac80211/patches/rt2x00/650-rt2x00-add-support-for-external-PA-on-MT7620.patch index 9bbf2ad07e..df234fe0df 100644 --- a/package/kernel/mac80211/patches/rt2x00/650-rt2x00-add-support-for-external-PA-on-MT7620.patch +++ b/package/kernel/mac80211/patches/rt2x00/650-rt2x00-add-support-for-external-PA-on-MT7620.patch @@ -76,7 +76,7 @@ Signed-off-by: Tomislav Po=C5=BEega bbp = rt2800_bbp_read(rt2x00dev, 4); rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 2 * conf_is_ht40(conf)); rt2800_bbp_write(rt2x00dev, 4, bbp); -@@ -9563,7 +9602,8 @@ static int rt2800_init_eeprom(struct rt2 +@@ -9560,7 +9599,8 @@ static int rt2800_init_eeprom(struct rt2 */ eeprom = rt2800_eeprom_read(rt2x00dev, EEPROM_NIC_CONF1); @@ -86,7 +86,7 @@ Signed-off-by: Tomislav Po=C5=BEega if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_EXTERNAL_TX0_PA_3352)) __set_bit(CAPABILITY_EXTERNAL_PA_TX0, -@@ -9574,6 +9614,18 @@ static int rt2800_init_eeprom(struct rt2 +@@ -9571,6 +9611,18 @@ static int rt2800_init_eeprom(struct rt2 &rt2x00dev->cap_flags); } diff --git a/package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-rf-self-txdc-calibration.patch b/package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-rf-self-txdc-calibration.patch index 38558885ac..ecf159d75a 100644 --- a/package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-rf-self-txdc-calibration.patch +++ b/package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-rf-self-txdc-calibration.patch @@ -1,6 +1,6 @@ --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c -@@ -8425,6 +8425,58 @@ static void rt2800_init_rfcsr_5592(struc +@@ -8422,6 +8422,58 @@ static void rt2800_init_rfcsr_5592(struc rt2800_led_open_drain_enable(rt2x00dev); } @@ -59,7 +59,7 @@ static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev, bool set_bw, bool is_ht40) { -@@ -9032,6 +9084,7 @@ static void rt2800_init_rfcsr_6352(struc +@@ -9029,6 +9081,7 @@ static void rt2800_init_rfcsr_6352(struc rt2800_rfcsr_write_dccal(rt2x00dev, 5, 0x00); rt2800_rfcsr_write_dccal(rt2x00dev, 17, 0x7C); diff --git a/package/kernel/mac80211/patches/rt2x00/983-rt2x00-add-r-calibration.patch b/package/kernel/mac80211/patches/rt2x00/983-rt2x00-add-r-calibration.patch index e56044f882..5b59c95c9a 100644 --- a/package/kernel/mac80211/patches/rt2x00/983-rt2x00-add-r-calibration.patch +++ b/package/kernel/mac80211/patches/rt2x00/983-rt2x00-add-r-calibration.patch @@ -1,6 +1,6 @@ --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c -@@ -8477,6 +8477,160 @@ void rt2800_rf_self_txdc_cal(struct rt2x +@@ -8474,6 +8474,160 @@ void rt2800_rf_self_txdc_cal(struct rt2x } EXPORT_SYMBOL_GPL(rt2800_rf_self_txdc_cal); @@ -161,7 +161,7 @@ static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev, bool set_bw, bool is_ht40) { -@@ -9084,6 +9238,7 @@ static void rt2800_init_rfcsr_6352(struc +@@ -9081,6 +9235,7 @@ static void rt2800_init_rfcsr_6352(struc rt2800_rfcsr_write_dccal(rt2x00dev, 5, 0x00); rt2800_rfcsr_write_dccal(rt2x00dev, 17, 0x7C); diff --git a/package/kernel/mac80211/patches/rt2x00/984-rt2x00-add-rxdcoc-calibration.patch b/package/kernel/mac80211/patches/rt2x00/984-rt2x00-add-rxdcoc-calibration.patch index 79cc7807b2..7cbcc2864a 100644 --- a/package/kernel/mac80211/patches/rt2x00/984-rt2x00-add-rxdcoc-calibration.patch +++ b/package/kernel/mac80211/patches/rt2x00/984-rt2x00-add-rxdcoc-calibration.patch @@ -1,6 +1,6 @@ --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c -@@ -8631,6 +8631,71 @@ void rt2800_r_calibration(struct rt2x00_ +@@ -8628,6 +8628,71 @@ void rt2800_r_calibration(struct rt2x00_ } EXPORT_SYMBOL_GPL(rt2800_r_calibration); @@ -72,7 +72,7 @@ static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev, bool set_bw, bool is_ht40) { -@@ -9240,6 +9305,7 @@ static void rt2800_init_rfcsr_6352(struc +@@ -9237,6 +9302,7 @@ static void rt2800_init_rfcsr_6352(struc rt2800_r_calibration(rt2x00dev); rt2800_rf_self_txdc_cal(rt2x00dev); diff --git a/package/kernel/mac80211/patches/rt2x00/985-rt2x00-add-rxiq-calibration.patch b/package/kernel/mac80211/patches/rt2x00/985-rt2x00-add-rxiq-calibration.patch index 01bed89a63..6d4548f469 100644 --- a/package/kernel/mac80211/patches/rt2x00/985-rt2x00-add-rxiq-calibration.patch +++ b/package/kernel/mac80211/patches/rt2x00/985-rt2x00-add-rxiq-calibration.patch @@ -1,6 +1,6 @@ --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c -@@ -8696,6 +8696,386 @@ void rt2800_rxdcoc_calibration(struct rt +@@ -8693,6 +8693,386 @@ void rt2800_rxdcoc_calibration(struct rt } EXPORT_SYMBOL_GPL(rt2800_rxdcoc_calibration); @@ -387,7 +387,7 @@ static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev, bool set_bw, bool is_ht40) { -@@ -9308,6 +9688,7 @@ static void rt2800_init_rfcsr_6352(struc +@@ -9305,6 +9685,7 @@ static void rt2800_init_rfcsr_6352(struc rt2800_rxdcoc_calibration(rt2x00dev); rt2800_bw_filter_calibration(rt2x00dev, true); rt2800_bw_filter_calibration(rt2x00dev, false); diff --git a/package/kernel/mac80211/patches/rt2x00/986-rt2x00-add-TX-LOFT-calibration.patch b/package/kernel/mac80211/patches/rt2x00/986-rt2x00-add-TX-LOFT-calibration.patch index eca6573457..111c2a42c2 100644 --- a/package/kernel/mac80211/patches/rt2x00/986-rt2x00-add-TX-LOFT-calibration.patch +++ b/package/kernel/mac80211/patches/rt2x00/986-rt2x00-add-TX-LOFT-calibration.patch @@ -1,6 +1,6 @@ --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c -@@ -9076,6 +9076,954 @@ restore_value: +@@ -9073,6 +9073,954 @@ restore_value: } EXPORT_SYMBOL_GPL(rt2800_rxiq_calibration); @@ -955,7 +955,7 @@ static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev, bool set_bw, bool is_ht40) { -@@ -9688,6 +10636,7 @@ static void rt2800_init_rfcsr_6352(struc +@@ -9685,6 +10633,7 @@ static void rt2800_init_rfcsr_6352(struc rt2800_rxdcoc_calibration(rt2x00dev); rt2800_bw_filter_calibration(rt2x00dev, true); rt2800_bw_filter_calibration(rt2x00dev, false); -- 2.30.2