From 8ccd66f258cd79420102f3735b3bc8d974a22088 Mon Sep 17 00:00:00 2001 From: Diwakar Sharma Date: Tue, 10 Apr 2018 12:30:32 +0530 Subject: mmc: core: sdio: Set SDIO clock of SDR104 to 150MHz for Marvell 8887 chip This patch uses limit clock rate quirk to reduce clock rate for "SDR104" mode on IMX side for Marvell 8887 WiFi + Bluetooth chip side, as Marvell does not recommend to use SDIO at the speed of higher than 150MHz. Signed-off-by: Diwakar Sharma Signed-off-by: Harish Jenny K N Signed-off-by: Ulf Hansson --- drivers/mmc/core/quirks.h | 3 +++ include/linux/mmc/sdio_ids.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h index 5153577754f0..dd2f73af8f2c 100644 --- a/drivers/mmc/core/quirks.h +++ b/drivers/mmc/core/quirks.h @@ -132,6 +132,9 @@ static const struct mmc_fixup sdio_fixup_methods[] = { SDIO_FIXUP(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_F0, add_quirk, MMC_QUIRK_BROKEN_IRQ_POLLING), + SDIO_FIXUP(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887WLAN, + add_limit_rate_quirk, 150000000), + END_FIXUP }; diff --git a/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h index cdd66a5fbd5e..2836a96e014a 100644 --- a/include/linux/mmc/sdio_ids.h +++ b/include/linux/mmc/sdio_ids.h @@ -55,6 +55,7 @@ #define SDIO_DEVICE_ID_MARVELL_8688WLAN 0x9104 #define SDIO_DEVICE_ID_MARVELL_8688BT 0x9105 #define SDIO_DEVICE_ID_MARVELL_8797_F0 0x9128 +#define SDIO_DEVICE_ID_MARVELL_8887WLAN 0x9134 #define SDIO_VENDOR_ID_SIANO 0x039a #define SDIO_DEVICE_ID_SIANO_NOVA_B0 0x0201 -- cgit v1.2.3-59-g8ed1b