GPIOs should be requested before use. Without this, driver model will
not permit the GPIO to be used.
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/errno.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/errno.h>
int setup_i2c(unsigned i2c_index, int speed, int slave_addr,
struct i2c_pads_info *p)
{
int setup_i2c(unsigned i2c_index, int speed, int slave_addr,
struct i2c_pads_info *p)
{
int ret;
if (i2c_index >= ARRAY_SIZE(i2c_bases))
return -EINVAL;
int ret;
if (i2c_index >= ARRAY_SIZE(i2c_bases))
return -EINVAL;
+
+ name1 = malloc(9);
+ name2 = malloc(9);
+ if (!name1 || !name2)
+ return -ENOMEM;
+
+ sprintf(name1, "i2c_sda%d", i2c_index);
+ sprintf(name2, "i2c_scl%d", i2c_index);
+ ret = gpio_request(p->sda.gp, name1);
+ if (ret)
+ goto err_req1;
+
+ ret = gpio_request(p->scl.gp, name2);
+ if (ret)
+ goto err_req2;
+
/* Enable i2c clock */
ret = enable_i2c_clk(1, i2c_index);
if (ret)
/* Enable i2c clock */
ret = enable_i2c_clk(1, i2c_index);
if (ret)
+ gpio_free(p->scl.gp);
+err_req2:
+ gpio_free(p->sda.gp);
+err_req1:
+ free(name1);
+ free(name2);
+