Merge tag 'soc-ep93xx-dt-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC update from Arnd Bergmann:
 "Convert ep93xx to devicetree

  This concludes a long journey towards replacing the old board files
  with devictree description on the Cirrus Logic EP93xx platform.

  Nikita Shubin has been working on this for a long time, for details
  see the last post on

    https://lore.kernel.org/lkml/20240909-ep93xx-v12-0-e86ab2423d4b@maquefel.me/"

* tag 'soc-ep93xx-dt-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (47 commits)
  dt-bindings: gpio: ep9301: Add missing "#interrupt-cells" to examples
  MAINTAINERS: Update EP93XX ARM ARCHITECTURE maintainer
  soc: ep93xx: drop reference to removed EP93XX_SOC_COMMON config
  net: cirrus: use u8 for addr to calm down sparse
  dmaengine: cirrus: use snprintf() to calm down gcc 13.3.0
  dmaengine: ep93xx: Fix a NULL vs IS_ERR() check in probe()
  pinctrl: ep93xx: Fix raster pins typo
  spi: ep93xx: update kerneldoc comments for ep93xx_spi
  clk: ep93xx: Fix off by one in ep93xx_div_recalc_rate()
  clk: ep93xx: add module license
  dmaengine: cirrus: remove platform code
  ASoC: cirrus: edb93xx: Delete driver
  ARM: ep93xx: soc: drop defines
  ARM: ep93xx: delete all boardfiles
  ata: pata_ep93xx: remove legacy pinctrl use
  pwm: ep93xx: drop legacy pinctrl
  ARM: ep93xx: DT for the Cirrus ep93xx SoC platforms
  ARM: dts: ep93xx: Add EDB9302 DT
  ARM: dts: ep93xx: add ts7250 board
  ARM: dts: add Cirrus EP93XX SoC .dtsi
  ...

6 files changed, 70 insertions, 174 deletions

diff --git a/include/dt-bindings/clock/cirrus,ep9301-syscon.h b/include/dt-bindings/clock/cirrus,ep9301-syscon.h
new file mode 100644
index 000000000000..6bb8f532e7d0
--- /dev/null
+++ b/include/dt-bindings/clock/cirrus,ep9301-syscon.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+#ifndef DT_BINDINGS_CIRRUS_EP93XX_CLOCK_H
+#define DT_BINDINGS_CIRRUS_EP93XX_CLOCK_H
+
+#define EP93XX_CLK_PLL1		0
+#define EP93XX_CLK_PLL2		1
+
+#define EP93XX_CLK_FCLK		2
+#define EP93XX_CLK_HCLK		3
+#define EP93XX_CLK_PCLK		4
+
+#define EP93XX_CLK_UART		5
+#define EP93XX_CLK_SPI		6
+#define EP93XX_CLK_PWM		7
+#define EP93XX_CLK_USB		8
+
+#define EP93XX_CLK_M2M0		9
+#define EP93XX_CLK_M2M1		10
+
+#define EP93XX_CLK_M2P0		11
+#define EP93XX_CLK_M2P1		12
+#define EP93XX_CLK_M2P2		13
+#define EP93XX_CLK_M2P3		14
+#define EP93XX_CLK_M2P4		15
+#define EP93XX_CLK_M2P5		16
+#define EP93XX_CLK_M2P6		17
+#define EP93XX_CLK_M2P7		18
+#define EP93XX_CLK_M2P8		19
+#define EP93XX_CLK_M2P9		20
+
+#define EP93XX_CLK_UART1	21
+#define EP93XX_CLK_UART2	22
+#define EP93XX_CLK_UART3	23
+
+#define EP93XX_CLK_ADC		24
+#define EP93XX_CLK_ADC_EN	25
+
+#define EP93XX_CLK_KEYPAD	26
+
+#define EP93XX_CLK_VIDEO	27
+
+#define EP93XX_CLK_I2S_MCLK	28
+#define EP93XX_CLK_I2S_SCLK	29
+#define EP93XX_CLK_I2S_LRCLK	30
+
+#endif /* DT_BINDINGS_CIRRUS_EP93XX_CLOCK_H */
diff --git a/include/linux/platform_data/dma-ep93xx.h b/include/linux/platform_data/dma-ep93xx.h
deleted file mode 100644
index eb9805bb3fe8..000000000000
--- a/include/linux/platform_data/dma-ep93xx.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_ARCH_DMA_H
-#define __ASM_ARCH_DMA_H
-
-#include <linux/types.h>
-#include <linux/dmaengine.h>
-#include <linux/dma-mapping.h>
-
-/*
- * M2P channels.
- *
- * Note that these values are also directly used for setting the PPALLOC
- * register.
- */
-#define EP93XX_DMA_I2S1		0
-#define EP93XX_DMA_I2S2		1
-#define EP93XX_DMA_AAC1		2
-#define EP93XX_DMA_AAC2		3
-#define EP93XX_DMA_AAC3		4
-#define EP93XX_DMA_I2S3		5
-#define EP93XX_DMA_UART1	6
-#define EP93XX_DMA_UART2	7
-#define EP93XX_DMA_UART3	8
-#define EP93XX_DMA_IRDA		9
-/* M2M channels */
-#define EP93XX_DMA_SSP		10
-#define EP93XX_DMA_IDE		11
-
-/**
- * struct ep93xx_dma_data - configuration data for the EP93xx dmaengine
- * @port: peripheral which is requesting the channel
- * @direction: TX/RX channel
- * @name: optional name for the channel, this is displayed in /proc/interrupts
- *
- * This information is passed as private channel parameter in a filter
- * function. Note that this is only needed for slave/cyclic channels.  For
- * memcpy channels %NULL data should be passed.
- */
-struct ep93xx_dma_data {
-	int				port;
-	enum dma_transfer_direction	direction;
-	const char			*name;
-};
-
-/**
- * struct ep93xx_dma_chan_data - platform specific data for a DMA channel
- * @name: name of the channel, used for getting the right clock for the channel
- * @base: mapped registers
- * @irq: interrupt number used by this channel
- */
-struct ep93xx_dma_chan_data {
-	const char			*name;
-	void __iomem			*base;
-	int				irq;
-};
-
-/**
- * struct ep93xx_dma_platform_data - platform data for the dmaengine driver
- * @channels: array of channels which are passed to the driver
- * @num_channels: number of channels in the array
- *
- * This structure is passed to the DMA engine driver via platform data. For
- * M2P channels, contract is that even channels are for TX and odd for RX.
- * There is no requirement for the M2M channels.
- */
-struct ep93xx_dma_platform_data {
-	struct ep93xx_dma_chan_data	*channels;
-	size_t				num_channels;
-};
-
-static inline bool ep93xx_dma_chan_is_m2p(struct dma_chan *chan)
-{
-	return !strcmp(dev_name(chan->device->dev), "ep93xx-dma-m2p");
-}
-
-/**
- * ep93xx_dma_chan_direction - returns direction the channel can be used
- * @chan: channel
- *
- * This function can be used in filter functions to find out whether the
- * channel supports given DMA direction. Only M2P channels have such
- * limitation, for M2M channels the direction is configurable.
- */
-static inline enum dma_transfer_direction
-ep93xx_dma_chan_direction(struct dma_chan *chan)
-{
-	if (!ep93xx_dma_chan_is_m2p(chan))
-		return DMA_TRANS_NONE;
-
-	/* even channels are for TX, odd for RX */
-	return (chan->chan_id % 2 == 0) ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
-}
-
-#endif /* __ASM_ARCH_DMA_H */
diff --git a/include/linux/platform_data/eth-ep93xx.h b/include/linux/platform_data/eth-ep93xx.h
deleted file mode 100644
index 8eef637a804d..000000000000
--- a/include/linux/platform_data/eth-ep93xx.h
+++ /dev/null
@@ -1,10 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _LINUX_PLATFORM_DATA_ETH_EP93XX
-#define _LINUX_PLATFORM_DATA_ETH_EP93XX
-
-struct ep93xx_eth_data {
-	unsigned char	dev_addr[6];
-	unsigned char	phy_id;
-};
-
-#endif
diff --git a/include/linux/platform_data/keypad-ep93xx.h b/include/linux/platform_data/keypad-ep93xx.h
deleted file mode 100644
index 3054fced8509..000000000000
--- a/include/linux/platform_data/keypad-ep93xx.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __KEYPAD_EP93XX_H
-#define __KEYPAD_EP93XX_H
-
-struct matrix_keymap_data;
-
-/* flags for the ep93xx_keypad driver */
-#define EP93XX_KEYPAD_DISABLE_3_KEY	(1<<0)	/* disable 3-key reset */
-#define EP93XX_KEYPAD_DIAG_MODE		(1<<1)	/* diagnostic mode */
-#define EP93XX_KEYPAD_BACK_DRIVE	(1<<2)	/* back driving mode */
-#define EP93XX_KEYPAD_TEST_MODE		(1<<3)	/* scan only column 0 */
-#define EP93XX_KEYPAD_AUTOREPEAT	(1<<4)	/* enable key autorepeat */
-
-/**
- * struct ep93xx_keypad_platform_data - platform specific device structure
- * @keymap_data:	pointer to &matrix_keymap_data
- * @debounce:		debounce start count; terminal count is 0xff
- * @prescale:		row/column counter pre-scaler load value
- * @flags:		see above
- */
-struct ep93xx_keypad_platform_data {
-	struct matrix_keymap_data *keymap_data;
-	unsigned int	debounce;
-	unsigned int	prescale;
-	unsigned int	flags;
-	unsigned int	clk_rate;
-};
-
-#define EP93XX_MATRIX_ROWS		(8)
-#define EP93XX_MATRIX_COLS		(8)
-
-#endif	/* __KEYPAD_EP93XX_H */
diff --git a/include/linux/platform_data/spi-ep93xx.h b/include/linux/platform_data/spi-ep93xx.h
deleted file mode 100644
index b439f2a896e0..000000000000
--- a/include/linux/platform_data/spi-ep93xx.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_MACH_EP93XX_SPI_H
-#define __ASM_MACH_EP93XX_SPI_H
-
-struct spi_device;
-
-/**
- * struct ep93xx_spi_info - EP93xx specific SPI descriptor
- * @use_dma: use DMA for the transfers
- */
-struct ep93xx_spi_info {
-	bool	use_dma;
-};
-
-#endif /* __ASM_MACH_EP93XX_SPI_H */
diff --git a/include/linux/soc/cirrus/ep93xx.h b/include/linux/soc/cirrus/ep93xx.h
index 56fbe2dc59b1..3e6cf2b25a97 100644
--- a/include/linux/soc/cirrus/ep93xx.h
+++ b/include/linux/soc/cirrus/ep93xx.h
@@ -2,7 +2,18 @@
 #ifndef _SOC_EP93XX_H
 #define _SOC_EP93XX_H
 
-struct platform_device;
+struct regmap;
+struct spinlock_t;
+
+enum ep93xx_soc_model {
+	EP93XX_9301_SOC,
+	EP93XX_9307_SOC,
+	EP93XX_9312_SOC,
+};
+
+#include <linux/auxiliary_bus.h>
+#include <linux/compiler_types.h>
+#include <linux/container_of.h>
 
 #define EP93XX_CHIP_REV_D0	3
 #define EP93XX_CHIP_REV_D1	4
@@ -10,28 +21,18 @@ struct platform_device;
 #define EP93XX_CHIP_REV_E1	6
 #define EP93XX_CHIP_REV_E2	7
 
-#ifdef CONFIG_ARCH_EP93XX
-int ep93xx_pwm_acquire_gpio(struct platform_device *pdev);
-void ep93xx_pwm_release_gpio(struct platform_device *pdev);
-int ep93xx_ide_acquire_gpio(struct platform_device *pdev);
-void ep93xx_ide_release_gpio(struct platform_device *pdev);
-int ep93xx_keypad_acquire_gpio(struct platform_device *pdev);
-void ep93xx_keypad_release_gpio(struct platform_device *pdev);
-int ep93xx_i2s_acquire(void);
-void ep93xx_i2s_release(void);
-unsigned int ep93xx_chip_revision(void);
+struct ep93xx_regmap_adev {
+	struct auxiliary_device adev;
+	struct regmap *map;
+	void __iomem *base;
+	spinlock_t *lock;
+	void (*write)(struct regmap *map, spinlock_t *lock, unsigned int reg,
+		      unsigned int val);
+	void (*update_bits)(struct regmap *map, spinlock_t *lock,
+			    unsigned int reg, unsigned int mask, unsigned int val);
+};
 
-#else
-static inline int ep93xx_pwm_acquire_gpio(struct platform_device *pdev) { return 0; }
-static inline void ep93xx_pwm_release_gpio(struct platform_device *pdev) {}
-static inline int ep93xx_ide_acquire_gpio(struct platform_device *pdev) { return 0; }
-static inline void ep93xx_ide_release_gpio(struct platform_device *pdev) {}
-static inline int ep93xx_keypad_acquire_gpio(struct platform_device *pdev) { return 0; }
-static inline void ep93xx_keypad_release_gpio(struct platform_device *pdev) {}
-static inline int ep93xx_i2s_acquire(void) { return 0; }
-static inline void ep93xx_i2s_release(void) {}
-static inline unsigned int ep93xx_chip_revision(void) { return 0; }
-
-#endif
+#define to_ep93xx_regmap_adev(_adev) \
+	container_of((_adev), struct ep93xx_regmap_adev, adev)
 
 #endif