ASoC: pxa: ac97: use normal MMIO accessors

To avoid dereferencing hardwired constant pointers from a global header
file, change the driver to use devm_platform_ioremap_resource for getting
an __iomem pointer, and then using readl/writel on that.

Each pointer dereference gets changed by a search&replace, which leads
to a few overlong lines, but seems less risky than trying to clean up
the code at the same time.

Cc: alsa-devel@alsa-project.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 100 insertions, 0 deletions

diff --git a/sound/arm/pxa2xx-ac97-regs.h b/sound/arm/pxa2xx-ac97-regs.h
new file mode 100644
index 000000000000..ae638a1b919b
--- /dev/null
+++ b/sound/arm/pxa2xx-ac97-regs.h
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_ARCH_REGS_AC97_H
+#define __ASM_ARCH_REGS_AC97_H
+
+/*
+ * AC97 Controller registers
+ */
+
+#define POCR		(0x0000)  	/* PCM Out Control Register */
+#define POCR_FEIE	(1 << 3)	/* FIFO Error Interrupt Enable */
+#define POCR_FSRIE	(1 << 1)	/* FIFO Service Request Interrupt Enable */
+
+#define PICR		(0x0004) 	/* PCM In Control Register */
+#define PICR_FEIE	(1 << 3)	/* FIFO Error Interrupt Enable */
+#define PICR_FSRIE	(1 << 1)	/* FIFO Service Request Interrupt Enable */
+
+#define MCCR		(0x0008)  	/* Mic In Control Register */
+#define MCCR_FEIE	(1 << 3)	/* FIFO Error Interrupt Enable */
+#define MCCR_FSRIE	(1 << 1)	/* FIFO Service Request Interrupt Enable */
+
+#define GCR		(0x000C) 	 /* Global Control Register */
+#ifdef CONFIG_PXA3xx
+#define GCR_CLKBPB	(1 << 31)	/* Internal clock enable */
+#endif
+#define GCR_nDMAEN	(1 << 24)	/* non DMA Enable */
+#define GCR_CDONE_IE	(1 << 19)	/* Command Done Interrupt Enable */
+#define GCR_SDONE_IE	(1 << 18)	/* Status Done Interrupt Enable */
+#define GCR_SECRDY_IEN	(1 << 9)	/* Secondary Ready Interrupt Enable */
+#define GCR_PRIRDY_IEN	(1 << 8)	/* Primary Ready Interrupt Enable */
+#define GCR_SECRES_IEN	(1 << 5)	/* Secondary Resume Interrupt Enable */
+#define GCR_PRIRES_IEN	(1 << 4)	/* Primary Resume Interrupt Enable */
+#define GCR_ACLINK_OFF	(1 << 3)	/* AC-link Shut Off */
+#define GCR_WARM_RST	(1 << 2)	/* AC97 Warm Reset */
+#define GCR_COLD_RST	(1 << 1)	/* AC'97 Cold Reset (0 = active) */
+#define GCR_GIE		(1 << 0)	/* Codec GPI Interrupt Enable */
+
+#define POSR		(0x0010)  	/* PCM Out Status Register */
+#define POSR_FIFOE	(1 << 4)	/* FIFO error */
+#define POSR_FSR	(1 << 2)	/* FIFO Service Request */
+
+#define PISR		(0x0014)  	/* PCM In Status Register */
+#define PISR_FIFOE	(1 << 4)	/* FIFO error */
+#define PISR_EOC	(1 << 3)	/* DMA End-of-Chain (exclusive clear) */
+#define PISR_FSR	(1 << 2)	/* FIFO Service Request */
+
+#define MCSR		(0x0018)  	/* Mic In Status Register */
+#define MCSR_FIFOE	(1 << 4)	/* FIFO error */
+#define MCSR_EOC	(1 << 3)	/* DMA End-of-Chain (exclusive clear) */
+#define MCSR_FSR	(1 << 2)	/* FIFO Service Request */
+
+#define GSR		(0x001C)  	/* Global Status Register */
+#define GSR_CDONE	(1 << 19)	/* Command Done */
+#define GSR_SDONE	(1 << 18)	/* Status Done */
+#define GSR_RDCS	(1 << 15)	/* Read Completion Status */
+#define GSR_BIT3SLT12	(1 << 14)	/* Bit 3 of slot 12 */
+#define GSR_BIT2SLT12	(1 << 13)	/* Bit 2 of slot 12 */
+#define GSR_BIT1SLT12	(1 << 12)	/* Bit 1 of slot 12 */
+#define GSR_SECRES	(1 << 11)	/* Secondary Resume Interrupt */
+#define GSR_PRIRES	(1 << 10)	/* Primary Resume Interrupt */
+#define GSR_SCR		(1 << 9)	/* Secondary Codec Ready */
+#define GSR_PCR		(1 << 8)	/*  Primary Codec Ready */
+#define GSR_MCINT	(1 << 7)	/* Mic In Interrupt */
+#define GSR_POINT	(1 << 6)	/* PCM Out Interrupt */
+#define GSR_PIINT	(1 << 5)	/* PCM In Interrupt */
+#define GSR_ACOFFD	(1 << 3)	/* AC-link Shut Off Done */
+#define GSR_MOINT	(1 << 2)	/* Modem Out Interrupt */
+#define GSR_MIINT	(1 << 1)	/* Modem In Interrupt */
+#define GSR_GSCI	(1 << 0)	/* Codec GPI Status Change Interrupt */
+
+#define CAR		(0x0020)  	/* CODEC Access Register */
+#define CAR_CAIP	(1 << 0)	/* Codec Access In Progress */
+
+#define PCDR		(0x0040)  	/* PCM FIFO Data Register */
+#define MCDR		(0x0060)  	/* Mic-in FIFO Data Register */
+
+#define MOCR		(0x0100)  	/* Modem Out Control Register */
+#define MOCR_FEIE	(1 << 3)	/* FIFO Error */
+#define MOCR_FSRIE	(1 << 1)	/* FIFO Service Request Interrupt Enable */
+
+#define MICR		(0x0108)  	/* Modem In Control Register */
+#define MICR_FEIE	(1 << 3)	/* FIFO Error */
+#define MICR_FSRIE	(1 << 1)	/* FIFO Service Request Interrupt Enable */
+
+#define MOSR		(0x0110)  	/* Modem Out Status Register */
+#define MOSR_FIFOE	(1 << 4)	/* FIFO error */
+#define MOSR_FSR	(1 << 2)	/* FIFO Service Request */
+
+#define MISR		(0x0118)  	/* Modem In Status Register */
+#define MISR_FIFOE	(1 << 4)	/* FIFO error */
+#define MISR_EOC	(1 << 3)	/* DMA End-of-Chain (exclusive clear) */
+#define MISR_FSR	(1 << 2)	/* FIFO Service Request */
+
+#define MODR		(0x0140)  	/* Modem FIFO Data Register */
+
+#define PAC_REG_BASE	(0x0200)  	/* Primary Audio Codec */
+#define SAC_REG_BASE	(0x0300)  	/* Secondary Audio Codec */
+#define PMC_REG_BASE	(0x0400)  	/* Primary Modem Codec */
+#define SMC_REG_BASE	(0x0500)  	/* Secondary Modem Codec */
+
+#endif /* __ASM_ARCH_REGS_AC97_H */