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SubjectRe: [PATCH] mfd: twl-core: Clean up module by removing twl603x pdata handling
Attn: Tony

> > > Since currently nobody uses TWL603x platform data and all new
> >
> > Hmm... when you say nobody, how did you come to this conclusion?
> >
> > Without digging into it and probably not that relevant, it
> > appears there is some references to it in platform data still:
> >
> > $ git grep twl603 -- arch/ | grep -v dts
> > arch/arm/mach-omap2/common.h:extern int omap4_twl6030_hsmmc_init(struct
> > omap2_hsmmc_info *controllers);
> > arch/arm/mach-omap2/omap4-common.c:static int
> > omap4_twl6030_hsmmc_late_init(struct device *dev)
> > arch/arm/mach-omap2/omap4-common.c: irq =
> > twl6030_mmc_card_detect_config();
> > arch/arm/mach-omap2/omap4-common.c:
> > pdata->slots[0].card_detect = twl6030_mmc_card_detect;
> > arch/arm/mach-omap2/omap4-common.c:static __init void
> > omap4_twl6030_hsmmc_set_late_init(struct device *dev)
> > arch/arm/mach-omap2/omap4-common.c: pdata->init =
> > omap4_twl6030_hsmmc_late_init;
> > arch/arm/mach-omap2/omap4-common.c:int __init
> > omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
> > arch/arm/mach-omap2/omap4-common.c:
> > omap4_twl6030_hsmmc_set_late_init(&c->pdev->dev);
> > arch/arm/mach-omap2/omap4-common.c:int __init
> > omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
> > arch/arm/mach-omap2/omap_twl.c:static unsigned long
> > twl6030_vsel_to_uv(const u8 vsel)
> > arch/arm/mach-omap2/omap_twl.c:static u8 twl6030_uv_to_vsel(unsigned long
> > uv)
> > arch/arm/mach-omap2/omap_twl.c: if (uv > twl6030_vsel_to_uv(0x39)) {
> > arch/arm/mach-omap2/omap_twl.c: __func__, uv,
> > twl6030_vsel_to_uv(0x39));
> > arch/arm/mach-omap2/omap_twl.c: .vsel_to_uv =
> > twl6030_vsel_to_uv,
> > arch/arm/mach-omap2/omap_twl.c: .uv_to_vsel =
> > twl6030_uv_to_vsel,
> > arch/arm/mach-omap2/omap_twl.c: .vsel_to_uv =
> > twl6030_vsel_to_uv,
> > arch/arm/mach-omap2/omap_twl.c: .uv_to_vsel =
> > twl6030_uv_to_vsel,
> > arch/arm/mach-omap2/omap_twl.c: .vsel_to_uv =
> > twl6030_vsel_to_uv,
> > arch/arm/mach-omap2/omap_twl.c: .uv_to_vsel =
> > twl6030_uv_to_vsel,
> >
> Looks like some misunderstanding is here. This patch *only* removes
> platform data for TWL603x
> which were used to create TWL sub-devices like regulators, adc's,
> watchdogs, etc.
> Previously it was set up in twl_common.c by omap4_pmic_init(), which was
> called from board files
> with specific pmic config.
> Since now in Linux kernel 3.13 OMAP4 non-DT boot is not supported and all
> OMAP4 board files
> have been removed omap4_pmic_init() is never called and all TWL603x
> sub-devices are created
> from device tree data.

I'm not overly familiar with this driver (it looks like a big
historical mess to me), or the current state of the OMAP4 platform, so
I would like a second opinion on this.

Tony would you be kind enough to oblige?

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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