mk-rootfs.sh

hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/drivers/pcmcia/pxa2xx_mainstone.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * linux/drivers/pcmcia/pxa2xx_mainstone.c
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  *
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@@ -6,61 +7,56 @@
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  * Created:	May 12, 2004
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  * Author:	Nicolas Pitre
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  * Copyright:	MontaVista Software Inc.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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-
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+#include <linux/gpio/consumer.h>
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 #include <linux/module.h>
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 #include <linux/init.h>
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+#include <linux/interrupt.h>
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 #include <linux/kernel.h>
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 #include <linux/errno.h>
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-#include <linux/interrupt.h>
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 #include <linux/platform_device.h>
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 #include <pcmcia/ss.h>
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 #include <asm/mach-types.h>
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-#include <asm/irq.h>
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-
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-#include <mach/pxa2xx-regs.h>
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-#include <mach/mainstone.h>
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 #include "soc_common.h"
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-
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+#include "max1600.h"
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 static int mst_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
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 {
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-	/*
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-	 * Setup default state of GPIO outputs
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-	 * before we enable them as outputs.
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-	 */
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-	if (skt->nr == 0) {
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-		skt->socket.pci_irq = MAINSTONE_S0_IRQ;
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-		skt->stat[SOC_STAT_CD].irq = MAINSTONE_S0_CD_IRQ;
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-		skt->stat[SOC_STAT_CD].name = "PCMCIA0 CD";
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-		skt->stat[SOC_STAT_BVD1].irq = MAINSTONE_S0_STSCHG_IRQ;
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-		skt->stat[SOC_STAT_BVD1].name = "PCMCIA0 STSCHG";
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-	} else {
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-		skt->socket.pci_irq = MAINSTONE_S1_IRQ;
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-		skt->stat[SOC_STAT_CD].irq = MAINSTONE_S1_CD_IRQ;
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-		skt->stat[SOC_STAT_CD].name = "PCMCIA1 CD";
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-		skt->stat[SOC_STAT_BVD1].irq = MAINSTONE_S1_STSCHG_IRQ;
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-		skt->stat[SOC_STAT_BVD1].name = "PCMCIA1 STSCHG";
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-	}
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-	return 0;
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+	struct device *dev = skt->socket.dev.parent;
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+	struct max1600 *m;
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+	int ret;
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+
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+	skt->stat[SOC_STAT_CD].name = skt->nr ? "bdetect" : "adetect";
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+	skt->stat[SOC_STAT_BVD1].name = skt->nr ? "bbvd1" : "abvd1";
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+	skt->stat[SOC_STAT_BVD2].name = skt->nr ? "bbvd2" : "abvd2";
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+	skt->stat[SOC_STAT_RDY].name = skt->nr ? "bready" : "aready";
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+	skt->stat[SOC_STAT_VS1].name = skt->nr ? "bvs1" : "avs1";
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+	skt->stat[SOC_STAT_VS2].name = skt->nr ? "bvs2" : "avs2";
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+
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+	skt->gpio_reset = devm_gpiod_get(dev, skt->nr ? "breset" : "areset",
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+					 GPIOD_OUT_HIGH);
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+	if (IS_ERR(skt->gpio_reset))
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+		return PTR_ERR(skt->gpio_reset);
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+
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+	ret = max1600_init(dev, &m, skt->nr ? MAX1600_CHAN_B : MAX1600_CHAN_A,
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+			   MAX1600_CODE_HIGH);
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+	if (ret)
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+		return ret;
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+
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+	skt->driver_data = m;
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+
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+	return soc_pcmcia_request_gpiods(skt);
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 }
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-static unsigned long mst_pcmcia_status[2];
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+static unsigned int mst_pcmcia_bvd1_status[2];
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 static void mst_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
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 				    struct pcmcia_state *state)
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 {
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-	unsigned long status, flip;
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-
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-	status = (skt->nr == 0) ? MST_PCMCIA0 : MST_PCMCIA1;
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-	flip = (status ^ mst_pcmcia_status[skt->nr]) & MST_PCMCIA_nSTSCHG_BVD1;
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+	unsigned int flip = mst_pcmcia_bvd1_status[skt->nr] ^ state->bvd1;
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 	/*
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 	 * Workaround for STSCHG which can't be deasserted:
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@@ -68,62 +64,18 @@
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 	 * as needed to avoid IRQ locks.
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 	 */
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 	if (flip) {
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-		mst_pcmcia_status[skt->nr] = status;
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-		if (status & MST_PCMCIA_nSTSCHG_BVD1)
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-			enable_irq( (skt->nr == 0) ? MAINSTONE_S0_STSCHG_IRQ
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-						   : MAINSTONE_S1_STSCHG_IRQ );
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+		mst_pcmcia_bvd1_status[skt->nr] = state->bvd1;
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+		if (state->bvd1)
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+			enable_irq(skt->stat[SOC_STAT_BVD1].irq);
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 		else
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-			disable_irq( (skt->nr == 0) ? MAINSTONE_S0_STSCHG_IRQ
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-						    : MAINSTONE_S1_STSCHG_IRQ );
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+			disable_irq(skt->stat[SOC_STAT_BVD2].irq);
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 	}
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-
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-	state->detect = (status & MST_PCMCIA_nCD) ? 0 : 1;
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-	state->ready  = (status & MST_PCMCIA_nIRQ) ? 1 : 0;
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-	state->bvd1   = (status & MST_PCMCIA_nSTSCHG_BVD1) ? 1 : 0;
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-	state->bvd2   = (status & MST_PCMCIA_nSPKR_BVD2) ? 1 : 0;
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-	state->vs_3v  = (status & MST_PCMCIA_nVS1) ? 0 : 1;
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-	state->vs_Xv  = (status & MST_PCMCIA_nVS2) ? 0 : 1;
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 }
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 static int mst_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
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 				       const socket_state_t *state)
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 {
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-	unsigned long power = 0;
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-	int ret = 0;
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-
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-	switch (state->Vcc) {
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-	case 0:  power |= MST_PCMCIA_PWR_VCC_0;  break;
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-	case 33: power |= MST_PCMCIA_PWR_VCC_33; break;
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-	case 50: power |= MST_PCMCIA_PWR_VCC_50; break;
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-	default:
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-		 printk(KERN_ERR "%s(): bad Vcc %u\n",
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-				 __func__, state->Vcc);
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-		 ret = -1;
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-	}
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-
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-	switch (state->Vpp) {
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-	case 0:   power |= MST_PCMCIA_PWR_VPP_0;   break;
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-	case 120: power |= MST_PCMCIA_PWR_VPP_120; break;
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-	default:
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-		  if(state->Vpp == state->Vcc) {
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-			  power |= MST_PCMCIA_PWR_VPP_VCC;
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-		  } else {
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-			  printk(KERN_ERR "%s(): bad Vpp %u\n",
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-					  __func__, state->Vpp);
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-			  ret = -1;
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-		  }
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-	}
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-
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-	if (state->flags & SS_RESET)
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-	       power |= MST_PCMCIA_RESET;
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-
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-	switch (skt->nr) {
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-	case 0:  MST_PCMCIA0 = power; break;
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-	case 1:  MST_PCMCIA1 = power; break;
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-	default: ret = -1;
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-	}
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-
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-	return ret;
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+	return max1600_configure(skt->driver_data, state->Vcc, state->Vpp);
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 }
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 static struct pcmcia_low_level mst_pcmcia_ops __initdata = {