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authorVladimir Zapolskiy <vz@mleia.com>2016-09-19 03:37:20 +0200
committerShawn Guo <shawnguo@kernel.org>2016-09-20 16:35:08 +0200
commita95a9322df400b5b4a9dc49dffbb30742ecc5497 (patch)
treefd0f59578bb2f8e08ddf4ddb367114ea83d8af58 /arch/arm/mach-imx
parentARM: imx legacy: qong: move peripheral initialization to .init_late (diff)
downloadlinux-a95a9322df400b5b4a9dc49dffbb30742ecc5497.tar.xz
linux-a95a9322df400b5b4a9dc49dffbb30742ecc5497.zip
ARM: imx legacy: armadillo5x0: move peripheral initialization to .init_late
The change moves some of peripheral registrations and initializations (all peripherals dependent on GPIOs) from .init_machine to .init_late level, this allows to safely shift the shared GPIO controller driver initialization level after init level of i.MX IOMUXC driver. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm/mach-imx')
-rw-r--r--arch/arm/mach-imx/mach-armadillo5x0.c39
1 files changed, 23 insertions, 16 deletions
diff --git a/arch/arm/mach-imx/mach-armadillo5x0.c b/arch/arm/mach-imx/mach-armadillo5x0.c
index eaee47a2fcc0..17a97ba2cecf 100644
--- a/arch/arm/mach-imx/mach-armadillo5x0.c
+++ b/arch/arm/mach-imx/mach-armadillo5x0.c
@@ -493,24 +493,12 @@ static void __init armadillo5x0_init(void)
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
- armadillo5x0_smc911x_resources[1].start =
- gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
- armadillo5x0_smc911x_resources[1].end =
- gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
- platform_add_devices(devices, ARRAY_SIZE(devices));
- imx_add_gpio_keys(&armadillo5x0_button_data);
imx31_add_imx_i2c1(NULL);
/* Register UART */
imx31_add_imx_uart0(&uart_pdata);
imx31_add_imx_uart1(&uart_pdata);
- /* SMSC9118 IRQ pin */
- gpio_direction_input(MX31_PIN_GPIO1_0);
-
- /* Register SDHC */
- imx31_add_mxc_mmc(0, &sdhc_pdata);
-
/* Register FB */
imx31_add_ipu_core();
imx31_add_mx3_sdc_fb(&mx3fb_pdata);
@@ -527,21 +515,39 @@ static void __init armadillo5x0_init(void)
/* set NAND page size to 2k if not configured via boot mode pins */
imx_writel(imx_readl(mx3_ccm_base + MXC_CCM_RCSR) | (1 << 30),
mx3_ccm_base + MXC_CCM_RCSR);
+}
+
+static void __init armadillo5x0_late(void)
+{
+ armadillo5x0_smc911x_resources[1].start =
+ gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
+ armadillo5x0_smc911x_resources[1].end =
+ gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
+ platform_add_devices(devices, ARRAY_SIZE(devices));
+
+ imx_add_gpio_keys(&armadillo5x0_button_data);
+
+ /* SMSC9118 IRQ pin */
+ gpio_direction_input(MX31_PIN_GPIO1_0);
+
+ /* Register SDHC */
+ imx31_add_mxc_mmc(0, &sdhc_pdata);
/* RTC */
/* Get RTC IRQ and register the chip */
- if (gpio_request(ARMADILLO5X0_RTC_GPIO, "rtc") == 0) {
- if (gpio_direction_input(ARMADILLO5X0_RTC_GPIO) == 0)
- armadillo5x0_i2c_rtc.irq = gpio_to_irq(ARMADILLO5X0_RTC_GPIO);
+ if (!gpio_request(ARMADILLO5X0_RTC_GPIO, "rtc")) {
+ if (!gpio_direction_input(ARMADILLO5X0_RTC_GPIO))
+ armadillo5x0_i2c_rtc.irq =
+ gpio_to_irq(ARMADILLO5X0_RTC_GPIO);
else
gpio_free(ARMADILLO5X0_RTC_GPIO);
}
+
if (armadillo5x0_i2c_rtc.irq == 0)
pr_warn("armadillo5x0_init: failed to get RTC IRQ\n");
i2c_register_board_info(1, &armadillo5x0_i2c_rtc, 1);
/* USB */
-
usbotg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
ULPI_OTG_DRVVBUS_EXT);
if (usbotg_pdata.otg)
@@ -565,5 +571,6 @@ MACHINE_START(ARMADILLO5X0, "Armadillo-500")
.init_irq = mx31_init_irq,
.init_time = armadillo5x0_timer_init,
.init_machine = armadillo5x0_init,
+ .init_late = armadillo5x0_late,
.restart = mxc_restart,
MACHINE_END