From: Serge Semin <Sergey.Semin@baikalelectronics.ru>
To: Damien Le Moal <damien.lemoal@opensource.wdc.com>,
Hans de Goede <hdegoede@redhat.com>, Jens Axboe <axboe@kernel.dk>
Cc: Serge Semin <Sergey.Semin@baikalelectronics.ru>,
Serge Semin <fancer.lancer@gmail.com>,
Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>,
Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>,
Rob Herring <robh+dt@kernel.org>, <linux-ide@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>
Subject: [PATCH 13/21] ata: libahci: Don't read AHCI version twice in the save-config method
Date: Thu, 24 Mar 2022 03:16:20 +0300 [thread overview]
Message-ID: <20220324001628.13028-14-Sergey.Semin@baikalelectronics.ru> (raw)
In-Reply-To: <20220324001628.13028-1-Sergey.Semin@baikalelectronics.ru>
There is no point in reading the AHCI version all over in the tail of the
ahci_save_initial_config() method. That register is RO and doesn't change
its value even after reset. So just reuse the data, which has already been
read from there earlier in the head of the function.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
---
drivers/ata/libahci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 011175e82174..43460da06947 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -564,7 +564,7 @@ void ahci_save_initial_config(struct device *dev, struct ahci_host_priv *hpriv)
/* record values to use during operation */
hpriv->cap = cap;
hpriv->cap2 = cap2;
- hpriv->version = readl(mmio + HOST_VERSION);
+ hpriv->version = vers;
hpriv->port_map = port_map;
if (!hpriv->start_engine)
--
2.35.1
next prev parent reply other threads:[~2022-03-28 15:45 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-24 0:16 [PATCH 00/21] ata: ahci: Add DWC/Baikal-T1 AHCI SATA support Serge Semin
2022-03-24 0:16 ` [PATCH 01/21] dt-bindings: ata: sata: Extend number of SATA ports Serge Semin
2022-03-29 8:15 ` Damien Le Moal
2022-04-11 19:25 ` Serge Semin
2022-03-24 0:16 ` [PATCH 02/21] dt-bindings: ata: Convert AHCI-bindings to DT schema Serge Semin
2022-03-28 19:32 ` Rob Herring
2022-04-11 19:34 ` Serge Semin
2022-03-24 0:16 ` [PATCH 03/21] ata: libahci_platform: Explicitly set rc on devres_alloc failure Serge Semin
2022-03-24 0:58 ` Damien Le Moal
2022-03-24 21:37 ` Serge Semin
2022-03-25 1:56 ` Damien Le Moal
2022-04-06 20:03 ` Serge Semin
2022-03-29 8:20 ` Damien Le Moal
2022-03-24 0:16 ` [PATCH 04/21] ata: libahci_platform: Convert to using handy devm-ioremap methods Serge Semin
2022-03-24 1:11 ` Damien Le Moal
2022-04-06 20:42 ` Serge Semin
2022-03-24 0:16 ` [PATCH 05/21] ata: libahci_platform: Convert to using devm bulk clocks API Serge Semin
2022-03-24 1:29 ` Damien Le Moal
2022-04-09 4:59 ` Serge Semin
2022-03-28 22:36 ` kernel test robot
2022-03-28 23:42 ` kernel test robot
2022-03-29 0:03 ` kernel test robot
2022-03-24 0:16 ` [PATCH 06/21] ata: libahci_platform: Add function returning a clock-handle by id Serge Semin
2022-03-24 1:36 ` Damien Le Moal
2022-04-11 6:02 ` Serge Semin
2022-03-24 0:16 ` [PATCH 07/21] ata: libahci_platform: Sanity check the DT child nodes number Serge Semin
2022-03-24 1:40 ` Damien Le Moal
2022-03-24 8:12 ` Sergey Shtylyov
2022-03-24 8:13 ` Damien Le Moal
2022-04-11 13:10 ` Serge Semin
2022-03-24 0:16 ` [PATCH 08/21] ata: libahci_platform: Parse ports-implemented property in resources getter Serge Semin
2022-03-24 0:16 ` [PATCH 09/21] ata: libahci_platform: Introduce reset assertion/deassertion methods Serge Semin
2022-03-24 1:52 ` Damien Le Moal
2022-04-11 10:57 ` Serge Semin
2022-03-24 0:16 ` [PATCH 10/21] dt-bindings: ata: ahci: Add platform capability properties Serge Semin
2022-03-24 0:16 ` [PATCH 11/21] ata: libahci: Extend port-cmd flags set with port capabilities Serge Semin
2022-03-24 0:16 ` [PATCH 12/21] ata: libahci: Discard redundant force_port_map parameter Serge Semin
2022-03-24 2:05 ` Damien Le Moal
2022-04-11 12:11 ` Serge Semin
2022-04-11 12:25 ` Damien Le Moal
2022-04-11 20:52 ` Serge Semin
2022-04-11 22:48 ` Damien Le Moal
2022-04-12 12:29 ` Serge Semin
2022-03-24 0:16 ` Serge Semin [this message]
2022-03-24 0:16 ` [PATCH 14/21] ata: ahci: Convert __ahci_port_base to accepting hpriv as arguments Serge Semin
2022-03-24 0:16 ` [PATCH 15/21] ata: ahci: Introduce firmware-specific caps initialization Serge Semin
2022-03-24 0:16 ` [PATCH 16/21] dt-bindings: ata: ahci: Add DWC AHCI SATA controller DT schema Serge Semin
2022-04-01 0:06 ` Rob Herring
2022-04-11 20:00 ` Serge Semin
2022-03-24 0:16 ` [PATCH 17/21] ata: ahci: Add DWC AHCI SATA controller support Serge Semin
2022-03-24 2:21 ` Damien Le Moal
2022-04-11 12:41 ` Serge Semin
2022-04-11 13:03 ` Damien Le Moal
2022-04-11 20:41 ` Serge Semin
2022-03-24 0:16 ` [PATCH 18/21] dt-bindings: ata: ahci: Add Baikal-T1 AHCI SATA controller DT schema Serge Semin
2022-03-24 0:16 ` [PATCH 19/21] ata: ahci-dwc: Add platform-specific quirks support Serge Semin
2022-03-24 0:16 ` [PATCH 20/21] ata: ahci-dwc: Add Baikal-T1 AHCI SATA interface support Serge Semin
2022-03-24 0:16 ` [PATCH 21/21] MAINTAINERS: Add maintainers for DWC AHCI SATA driver Serge Semin
2022-03-24 2:17 ` Damien Le Moal
2022-04-11 12:16 ` Serge Semin
2022-03-28 20:06 ` [PATCH 00/21] ata: ahci: Add DWC/Baikal-T1 AHCI SATA support Damien Le Moal
2022-03-29 8:30 ` Damien Le Moal
2022-04-06 19:54 ` Serge Semin
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