From: James Clark <james.clark@linaro.org>
To: Vladimir Oltean <olteanv@gmail.com>,
Mark Brown <broonie@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Frank Li <Frank.Li@nxp.com>,
Chester Lin <chester62515@gmail.com>,
Matthias Brugger <mbrugger@suse.com>,
Ghennadi Procopciuc <ghennadi.procopciuc@oss.nxp.com>,
NXP S32 Linux Team <s32@nxp.com>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
larisa.grigore@nxp.com, arnd@linaro.org,
andrei.stefanescu@nxp.com, dan.carpenter@linaro.org
Cc: linux-spi@vger.kernel.org, imx@lists.linux.dev,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
James Clark <james.clark@linaro.org>
Subject: [PATCH 02/14] spi: spi-fsl-dspi: Re-use one volatile regmap for both device types
Date: Fri, 09 May 2025 12:05:49 +0100 [thread overview]
Message-ID: <20250509-james-nxp-spi-v1-2-32bfcd2fea11@linaro.org> (raw)
In-Reply-To: <20250509-james-nxp-spi-v1-0-32bfcd2fea11@linaro.org>
max_register overrides anything in the volatile ranges, so we can get
away with sharing the same one for both types. In a later commit we'll
add more devices and also read/write ranges which also override volatile
ranges so this avoids adding even more duplication.
No functional changes.
Signed-off-by: James Clark <james.clark@linaro.org>
---
drivers/spi/spi-fsl-dspi.c | 15 ++-------------
1 file changed, 2 insertions(+), 13 deletions(-)
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 31ea8ce81e98..cb0e55a49eea 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -141,6 +141,7 @@ static const struct regmap_range dspi_volatile_ranges[] = {
regmap_reg_range(SPI_MCR, SPI_TCR),
regmap_reg_range(SPI_SR, SPI_SR),
regmap_reg_range(SPI_PUSHR, SPI_RXFR3),
+ regmap_reg_range(SPI_SREX, SPI_SREX)
};
static const struct regmap_access_table dspi_volatile_table = {
@@ -148,18 +149,6 @@ static const struct regmap_access_table dspi_volatile_table = {
.n_yes_ranges = ARRAY_SIZE(dspi_volatile_ranges),
};
-static const struct regmap_range dspi_xspi_volatile_ranges[] = {
- regmap_reg_range(SPI_MCR, SPI_TCR),
- regmap_reg_range(SPI_SR, SPI_SR),
- regmap_reg_range(SPI_PUSHR, SPI_RXFR3),
- regmap_reg_range(SPI_SREX, SPI_SREX),
-};
-
-static const struct regmap_access_table dspi_xspi_volatile_table = {
- .yes_ranges = dspi_xspi_volatile_ranges,
- .n_yes_ranges = ARRAY_SIZE(dspi_xspi_volatile_ranges),
-};
-
enum {
DSPI_REGMAP,
DSPI_XSPI_REGMAP,
@@ -179,7 +168,7 @@ static const struct regmap_config dspi_regmap_config[] = {
.val_bits = 32,
.reg_stride = 4,
.max_register = 0x13c,
- .volatile_table = &dspi_xspi_volatile_table
+ .volatile_table = &dspi_volatile_table
},
[DSPI_PUSHR] = {
.name = "pushr",
--
2.34.1
next prev parent reply other threads:[~2025-05-09 11:55 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-09 11:05 [PATCH 00/14] spi: spi-fsl-dspi: DSPI support for NXP S32G platforms James Clark
2025-05-09 11:05 ` [PATCH 01/14] spi: spi-fsl-dspi: Define regmaps per device James Clark
2025-05-09 16:04 ` Vladimir Oltean
2025-05-09 11:05 ` James Clark [this message]
2025-05-09 16:07 ` [PATCH 02/14] spi: spi-fsl-dspi: Re-use one volatile regmap for both device types Vladimir Oltean
2025-05-09 11:05 ` [PATCH 03/14] spi: spi-fsl-dspi: restrict register range for regmap access James Clark
2025-05-09 14:06 ` Vladimir Oltean
2025-05-19 10:25 ` James Clark
2025-05-10 1:16 ` Mark Brown
2025-05-09 11:05 ` [PATCH 04/14] spi: spi-fsl-dspi: Add config and regmaps for S32G platforms James Clark
2025-05-09 11:05 ` [PATCH 05/14] spi: spi-fsl-dspi: Use spi_alloc_target for target James Clark
2025-05-09 11:05 ` [PATCH 06/14] spi: spi-fsl-dspi: Avoid setup_accel logic for DMA transfers James Clark
2025-05-09 11:05 ` [PATCH 07/14] spi: spi-fsl-dspi: Reset SR flags before sending a new message James Clark
2025-05-09 11:05 ` [PATCH 08/14] spi: spi-fsl-dspi: Use DMA for S32G controller in target mode James Clark
2025-05-09 11:05 ` [PATCH 09/14] spi: spi-fsl-dspi: Reinitialize DSPI regs after resuming for S32G James Clark
2025-05-09 11:05 ` [PATCH 10/14] spi: spi-fsl-dspi: Enable modified transfer protocol James Clark
2025-05-10 1:18 ` Mark Brown
2025-05-15 12:20 ` James Clark
2025-05-09 11:05 ` [PATCH 11/14] spi: spi-fsl-dspi: Halt the module after a new message transfer James Clark
2025-05-10 1:19 ` Mark Brown
2025-05-09 11:05 ` [PATCH 12/14] dt-bindings: spi: dspi: Add S32G support James Clark
2025-05-09 11:14 ` Krzysztof Kozlowski
2025-05-09 11:26 ` James Clark
2025-05-09 11:06 ` [PATCH 13/14] spi: spi-fsl-dspi: Enable support for S32G platforms James Clark
2025-05-09 11:06 ` [PATCH 14/14] arm64: dts: Add DSPI entries " James Clark
2025-05-09 11:26 ` Krzysztof Kozlowski
2025-05-09 12:54 ` Matti Vaittinen
2025-05-09 13:46 ` James Clark
2025-05-09 13:57 ` Krzysztof Kozlowski
2025-05-09 14:17 ` [PATCH 00/14] spi: spi-fsl-dspi: DSPI support for NXP " Rob Herring (Arm)
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