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89 lines
3.8 KiB
Diff
89 lines
3.8 KiB
Diff
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From patchwork Sat Nov 2 17:47:01 2019
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Content-Type: text/plain; charset="utf-8"
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MIME-Version: 1.0
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Content-Transfer-Encoding: 7bit
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X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org>
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X-Patchwork-Id: 11224189
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X-Patchwork-Delegate: kvalo@adurom.com
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Return-Path: <SRS0=CgQo=Y2=vger.kernel.org=linux-wireless-owner@kernel.org>
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Date: Sat, 2 Nov 2019 18:47:01 +0100
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From: Daniel Golle <daniel@makrotopia.org>
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To: Stanislaw Gruszka <sgruszka@redhat.com>
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Cc: linux-wireless@vger.kernel.org, Roman Yeryomin <roman@advem.lv>,
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wbob <wbob@jify.de>
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Subject: [PATCH v2] rt2800: remove errornous duplicate condition
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Message-ID: <20191102174701.GA1489@makrotopia.org>
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References: <20191102154639.GA4589@redhat.com>
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MIME-Version: 1.0
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Content-Disposition: inline
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In-Reply-To: <20191102154639.GA4589@redhat.com>
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User-Agent: Mutt/1.12.2 (2019-09-21)
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Sender: linux-wireless-owner@vger.kernel.org
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Precedence: bulk
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List-ID: <linux-wireless.vger.kernel.org>
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X-Mailing-List: linux-wireless@vger.kernel.org
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On 2019-10-28 06:07, wbob wrote:
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> Hello Roman,
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>
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> while reading around drivers/net/wireless/ralink/rt2x00/rt2800lib.c
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> I stumbled on what I think is an edit of yours made in error in march
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> 2017:
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>
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> https://github.com/torvalds/linux/commit/41977e86#diff-dae5dc10da180f3b055809a48118e18aR5281
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>
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> RT6352 in line 5281 should not have been introduced as the "else if"
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> below line 5291 can then not take effect for a RT6352 device. Another
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> possibility is for line 5291 to be not for RT6352, but this seems
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> very unlikely. Are you able to clarify still after this substantial time?
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>
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> 5277: static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
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> ...
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> 5279: } else if (rt2x00_rt(rt2x00dev, RT5390) ||
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> 5280: rt2x00_rt(rt2x00dev, RT5392) ||
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> 5281: rt2x00_rt(rt2x00dev, RT6352)) {
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> ...
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> 5291: } else if (rt2x00_rt(rt2x00dev, RT6352)) {
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> ...
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Hence remove errornous line 5281 to make the driver actually
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execute the correct initialization routine for MT7620 chips.
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As it was requested by Stanislaw Gruszka remove setting values of
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MIMO_PS_CFG and TX_PIN_CFG. MIMO_PS_CFG is responsible for MIMO
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power-safe mode (which is disabled), hence we can drop setting it.
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TX_PIN_CFG is set correctly in other functions, and as setting this
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value breaks some devices, rather don't set it here during init, but
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only modify it later on.
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Fixes: 41977e86c984 ("rt2x00: add support for MT7620")
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Reported-by: wbob <wbob@jify.de>
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Reported-by: Roman Yeryomin <roman@advem.lv>
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
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---
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drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 5 +----
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1 file changed, 1 insertion(+), 4 deletions(-)
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--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
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+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
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@@ -5839,8 +5839,7 @@ static int rt2800_init_registers(struct
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rt2800_register_write(rt2x00dev, TX_TXBF_CFG_0, 0x8000fc21);
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rt2800_register_write(rt2x00dev, TX_TXBF_CFG_3, 0x00009c40);
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} else if (rt2x00_rt(rt2x00dev, RT5390) ||
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- rt2x00_rt(rt2x00dev, RT5392) ||
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- rt2x00_rt(rt2x00dev, RT6352)) {
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+ rt2x00_rt(rt2x00dev, RT5392)) {
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rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000404);
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rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x00080606);
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rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000);
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@@ -5854,8 +5853,6 @@ static int rt2800_init_registers(struct
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rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000401);
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rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x000C0000);
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rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000);
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- rt2800_register_write(rt2x00dev, MIMO_PS_CFG, 0x00000002);
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- rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0x00150F0F);
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rt2800_register_write(rt2x00dev, TX_ALC_VGA3, 0x00000000);
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rt2800_register_write(rt2x00dev, TX0_BB_GAIN_ATTEN, 0x0);
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rt2800_register_write(rt2x00dev, TX1_BB_GAIN_ATTEN, 0x0);
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