spi-pxa2xx.c (1bed378c6b9116c51ae59b970cf3d9b4e9e62ced) spi-pxa2xx.c (42c80cd439a938569a86f6ae135d38c1cda5569b)
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs
4 * Copyright (C) 2013, Intel Corporation
5 */
6
7#include <linux/acpi.h>
8#include <linux/bitops.h>

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728
729 /* We did something */
730 return IRQ_HANDLED;
731}
732
733static void handle_bad_msg(struct driver_data *drv_data)
734{
735 pxa2xx_spi_off(drv_data);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs
4 * Copyright (C) 2013, Intel Corporation
5 */
6
7#include <linux/acpi.h>
8#include <linux/bitops.h>

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728
729 /* We did something */
730 return IRQ_HANDLED;
731}
732
733static void handle_bad_msg(struct driver_data *drv_data)
734{
735 pxa2xx_spi_off(drv_data);
736 pxa2xx_spi_write(drv_data, SSCR1,
737 pxa2xx_spi_read(drv_data, SSCR1) & ~drv_data->int_cr1);
736 clear_SSCR1_bits(drv_data, drv_data->int_cr1);
738 if (!pxa25x_ssp_comp(drv_data))
739 pxa2xx_spi_write(drv_data, SSTO, 0);
740 write_SSSR_CS(drv_data, drv_data->clear_sr);
741
742 dev_err(drv_data->ssp->dev, "bad message state in interrupt handler\n");
743}
744
745static irqreturn_t ssp_int(int irq, void *dev_id)

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1156 struct spi_message *msg)
1157{
1158 struct driver_data *drv_data = spi_controller_get_devdata(controller);
1159
1160 /* Disable the SSP */
1161 pxa2xx_spi_off(drv_data);
1162 /* Clear and disable interrupts and service requests */
1163 write_SSSR_CS(drv_data, drv_data->clear_sr);
737 if (!pxa25x_ssp_comp(drv_data))
738 pxa2xx_spi_write(drv_data, SSTO, 0);
739 write_SSSR_CS(drv_data, drv_data->clear_sr);
740
741 dev_err(drv_data->ssp->dev, "bad message state in interrupt handler\n");
742}
743
744static irqreturn_t ssp_int(int irq, void *dev_id)

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1155 struct spi_message *msg)
1156{
1157 struct driver_data *drv_data = spi_controller_get_devdata(controller);
1158
1159 /* Disable the SSP */
1160 pxa2xx_spi_off(drv_data);
1161 /* Clear and disable interrupts and service requests */
1162 write_SSSR_CS(drv_data, drv_data->clear_sr);
1164 pxa2xx_spi_write(drv_data, SSCR1,
1165 pxa2xx_spi_read(drv_data, SSCR1)
1166 & ~(drv_data->int_cr1 | drv_data->dma_cr1));
1163 clear_SSCR1_bits(drv_data, drv_data->int_cr1 | drv_data->dma_cr1);
1167 if (!pxa25x_ssp_comp(drv_data))
1168 pxa2xx_spi_write(drv_data, SSTO, 0);
1169
1170 /*
1171 * Stop the DMA if running. Note DMA callback handler may have unset
1172 * the dma_running already, which is fine as stopping is not needed
1173 * then but we shouldn't rely this flag for anything else than
1174 * stopping. For instance to differentiate between PIO and DMA

--- 855 unchanged lines hidden --- 		1164 if (!pxa25x_ssp_comp(drv_data))
1165 pxa2xx_spi_write(drv_data, SSTO, 0);
1166
1167 /*
1168 * Stop the DMA if running. Note DMA callback handler may have unset
1169 * the dma_running already, which is fine as stopping is not needed
1170 * then but we shouldn't rely this flag for anything else than
1171 * stopping. For instance to differentiate between PIO and DMA

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