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ata: pata_ep93xx: use soc_device_match for UDMA modes

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Replace ep93xx_chip_revision() with soc_device_match(), so
ep93xx_chip_revision() can be safetly dropped from exported functions.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
This commit is contained in:
Nikita Shubin 2023-08-23 12:47:28 +03:00 committed by Damien Le Moal
parent 41203f93e2
commit db15538ba6
1 changed files with 11 additions and 5 deletions
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16
drivers/ata/pata_ep93xx.c
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@ -40,6 +40,7 @@
#include <linux/ata.h>
#include <linux/libata.h>
#include <linux/platform_device.h>
#include <linux/sys_soc.h>
#include <linux/delay.h>
#include <linux/dmaengine.h>
#include <linux/ktime.h>
@ -910,6 +911,12 @@ static struct ata_port_operations ep93xx_pata_port_ops = {
.port_start = ep93xx_pata_port_start,
};
static const struct soc_device_attribute ep93xx_soc_table[] = {
{ .revision = "E1", .data = (void *)ATA_UDMA3 },
{ .revision = "E2", .data = (void *)ATA_UDMA4 },
{ /* sentinel */ }
};
static int ep93xx_pata_probe(struct platform_device *pdev)
{
struct ep93xx_pata_data *drv_data;
@ -976,12 +983,11 @@ static int ep93xx_pata_probe(struct platform_device *pdev)
* so this driver supports only UDMA modes.
*/
if (drv_data->dma_rx_channel && drv_data->dma_tx_channel) {
int chip_rev = ep93xx_chip_revision();
const struct soc_device_attribute *match;
if (chip_rev == EP93XX_CHIP_REV_E1)
ap->udma_mask = ATA_UDMA3;
else if (chip_rev == EP93XX_CHIP_REV_E2)
ap->udma_mask = ATA_UDMA4;
match = soc_device_match(ep93xx_soc_table);
if (match)
ap->udma_mask = (unsigned int) match->data;
else
ap->udma_mask = ATA_UDMA2;
}