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2719a9e715
The CW1200 uses two GPIOs to control the powerup and reset pins, get these from GPIO descriptors instead of being passed as platform data from boardfiles. The RESET line will need to be marked as active low as we will let gpiolib handle the polarity inversion. The SDIO case is a bit special since the "card" need to be powered up before it gets detected on the SDIO bus and properly probed. Fix this by using board-specific GPIOs assigned to device "NULL". There are currently no in-tree users. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://msgid.link/20240131-descriptors-wireless-v1-6-e1c7c5d68746@linaro.org
78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) ST-Ericsson SA 2011
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*
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* Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
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*/
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#ifndef CW1200_PLAT_H_INCLUDED
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#define CW1200_PLAT_H_INCLUDED
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struct cw1200_platform_data_spi {
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u8 spi_bits_per_word; /* REQUIRED */
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u16 ref_clk; /* REQUIRED (in KHz) */
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/* All others are optional */
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bool have_5ghz;
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int (*power_ctrl)(const struct cw1200_platform_data_spi *pdata,
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bool enable); /* Control 3v3 / 1v8 supply */
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int (*clk_ctrl)(const struct cw1200_platform_data_spi *pdata,
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bool enable); /* Control CLK32K */
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const u8 *macaddr; /* if NULL, use cw1200_mac_template module parameter */
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const char *sdd_file; /* if NULL, will use default for detected hw type */
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};
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struct cw1200_platform_data_sdio {
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u16 ref_clk; /* REQUIRED (in KHz) */
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/* All others are optional */
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bool have_5ghz;
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bool no_nptb; /* SDIO hardware does not support non-power-of-2-blocksizes */
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int irq; /* IRQ line or 0 to use SDIO IRQ */
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int (*power_ctrl)(const struct cw1200_platform_data_sdio *pdata,
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bool enable); /* Control 3v3 / 1v8 supply */
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int (*clk_ctrl)(const struct cw1200_platform_data_sdio *pdata,
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bool enable); /* Control CLK32K */
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const u8 *macaddr; /* if NULL, use cw1200_mac_template module parameter */
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const char *sdd_file; /* if NULL, will use default for detected hw type */
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};
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/* An example of SPI support in your board setup file:
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static struct cw1200_platform_data_spi cw1200_platform_data = {
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.ref_clk = 38400,
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.spi_bits_per_word = 16,
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.reset = GPIO_RF_RESET,
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.powerup = GPIO_RF_POWERUP,
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.macaddr = wifi_mac_addr,
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.sdd_file = "sdd_sagrad_1091_1098.bin",
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};
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static struct spi_board_info myboard_spi_devices[] __initdata = {
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{
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.modalias = "cw1200_wlan_spi",
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.max_speed_hz = 52000000,
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.bus_num = 0,
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.irq = WIFI_IRQ,
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.platform_data = &cw1200_platform_data,
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.chip_select = 0,
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},
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};
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*/
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/* An example of SDIO support in your board setup file:
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static struct cw1200_platform_data_sdio my_cw1200_platform_data = {
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.ref_clk = 38400,
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.have_5ghz = false,
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.sdd_file = "sdd_myplatform.bin",
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};
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cw1200_sdio_set_platform_data(&my_cw1200_platform_data);
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*/
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void __init cw1200_sdio_set_platform_data(struct cw1200_platform_data_sdio *pdata);
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#endif /* CW1200_PLAT_H_INCLUDED */
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