Re: [PATCH v1 2/2] spi: add support for Meson A1 SPI Flash Controller

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Hi,

On 22/03/2023 16:04, Martin Kurbanov wrote:
This is a driver for the Amlogic Meson SPI flash controller support
on A113L SoC.

Signed-off-by: Martin Kurbanov <mmkurbanov@xxxxxxxxxxxxxx>
---
  drivers/spi/Kconfig              |   7 +
  drivers/spi/Makefile             |   1 +
  drivers/spi/spi-meson-spifc-a1.c | 444 +++++++++++++++++++++++++++++++
  3 files changed, 452 insertions(+)
  create mode 100644 drivers/spi/spi-meson-spifc-a1.c

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 3b1c0878bb85..a12452bd1e0c 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -582,6 +582,13 @@ config SPI_MESON_SPIFC
  	  This enables master mode support for the SPIFC (SPI flash
  	  controller) available in Amlogic Meson SoCs.
+config SPI_MESON_SPIFC_A1
+	tristate "Amlogic Meson A113L SPIFC controller"

The title should be "Amlogic Meson A1 SPIFC controller" for coherency.

+	depends on ARCH_MESON || COMPILE_TEST
+	help
+	  This enables master mode support for the SPIFC (SPI flash
+	  controller) available in Amlogic Meson A113L (A1 family) SoC.

You should write the reverse: available in Amlogic Meson A1 Family (A113L SoC).

+
  config SPI_MICROCHIP_CORE
  	tristate "Microchip FPGA SPI controllers"
  	depends on SPI_MASTER
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index be9ba40ef8d0..702053970967 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -72,6 +72,7 @@ obj-$(CONFIG_SPI_LM70_LLP)		+= spi-lm70llp.o
  obj-$(CONFIG_SPI_LP8841_RTC)		+= spi-lp8841-rtc.o
  obj-$(CONFIG_SPI_MESON_SPICC)		+= spi-meson-spicc.o
  obj-$(CONFIG_SPI_MESON_SPIFC)		+= spi-meson-spifc.o
+obj-$(CONFIG_SPI_MESON_SPIFC_A1)	+= spi-meson-spifc-a1.o
  obj-$(CONFIG_SPI_MICROCHIP_CORE)	+= spi-microchip-core.o
  obj-$(CONFIG_SPI_MICROCHIP_CORE_QSPI)	+= spi-microchip-core-qspi.o
  obj-$(CONFIG_SPI_MPC512x_PSC)		+= spi-mpc512x-psc.o
diff --git a/drivers/spi/spi-meson-spifc-a1.c b/drivers/spi/spi-meson-spifc-a1.c
new file mode 100644
index 000000000000..213c8b692675
--- /dev/null
+++ b/drivers/spi/spi-meson-spifc-a1.c
@@ -0,0 +1,444 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for Amlogic Meson A113L SPI flash controller (SPIFC)

Same here

+ *
+ * Copyright (c) 2023, SberDevices. All Rights Reserved.
+ *
+ * Author: Martin Kurbanov <mmkurbanov@xxxxxxxxxxxxxx>
+ */
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi-mem.h>
+#include <linux/types.h>
+
+#define A1_SPIFC_AHB_CTRL_REG		0x0
+#define A1_SPIFC_AHB_BUS_EN		BIT(31)

I find the "A1_SPIFC" hard to read, I think you should reverse
it in all the file into :
#define SPIFC_A1_...
and
static XXX meson_spifc_a1_request to be coherent with the legacy spifc
driver and spicc driver.


<snip>

+
+MODULE_AUTHOR("Martin Kurbanov <mmkurbanov@xxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("Amlogic Meson A113L SPIFC driver");

Same here "Meson A1 SPIFC driver"

+MODULE_LICENSE("GPL");

Thanks,
Neil




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