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813c2aee51
The Tosa device (Sharp SL-6000) has a mishmash driver set-up for the Toshiba TC6393xb MFD that includes a battery charger and touchscreen and has some kind of relationship to the SoC sound driver for the AC97 codec. Other devices define a chip like this but seem only half-implemented, not really handling battery charging etc. This patch switches the Toshiba MFD device to provide GPIO descriptors to the battery charger and SoC codec. As a result some descriptors need to be moved out of the Tosa boardfile and new one added: all SoC GPIO resources to these drivers now comes from the main boardfile, while the MFD provide GPIOs for its portions. As a result we can request one GPIO from our own GPIO chip and drop two hairy callbacks into the board file. This platform badly needs to have its drivers split up and converted to device tree probing to handle this quite complex relationship in an orderly manner. I just do my best in solving the GPIO descriptor part of the puzzle. Please don't ask me to fix everything that is wrong with these driver to todays standards, I am just trying to fix one aspect. I do try to use modern devres resource management and handle deferred probe using new functions where appropriate. Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: Dirk Opfer <dirk@opfer-online.de> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Liam Girdwood <lgirdwood@gmail.com> Reviewed-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Toshiba TC6393XB SoC support
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*
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* Copyright(c) 2005-2006 Chris Humbert
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* Copyright(c) 2005 Dirk Opfer
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* Copyright(c) 2005 Ian Molton <spyro@f2s.com>
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* Copyright(c) 2007 Dmitry Baryshkov
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*
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* Based on code written by Sharp/Lineo for 2.4 kernels
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* Based on locomo.c
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*/
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#ifndef MFD_TC6393XB_H
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#define MFD_TC6393XB_H
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#include <linux/fb.h>
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/* Also one should provide the CK3P6MI clock */
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struct tc6393xb_platform_data {
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u16 scr_pll2cr; /* PLL2 Control */
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u16 scr_gper; /* GP Enable */
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int (*enable)(struct platform_device *dev);
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int (*disable)(struct platform_device *dev);
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int (*suspend)(struct platform_device *dev);
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int (*resume)(struct platform_device *dev);
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int irq_base; /* base for subdevice irqs */
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struct tmio_nand_data *nand_data;
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struct tmio_fb_data *fb_data;
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unsigned resume_restore : 1; /* make special actions
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to preserve the state
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on suspend/resume */
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};
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extern int tc6393xb_lcd_mode(struct platform_device *fb,
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const struct fb_videomode *mode);
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extern int tc6393xb_lcd_set_power(struct platform_device *fb, bool on);
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/*
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* Relative to irq_base
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*/
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#define IRQ_TC6393_NAND 0
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#define IRQ_TC6393_MMC 1
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#define IRQ_TC6393_OHCI 2
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#define IRQ_TC6393_FB 4
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#define TC6393XB_NR_IRQS 8
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#endif
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