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Message-ID: <20141031134459.GB24708@kahuna>
Date: Fri, 31 Oct 2014 08:44:59 -0500
From: Nishanth Menon <nm@...com>
To: Vignesh R <vigneshr@...com>
CC: Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Russell King <linux@....linux.org.uk>,
Tony Lindgren <tony@...mide.com>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>
Subject: Re: [PATCH 2/3] arm: mach-omap2: omap_hwmod_43xx_data: add hwmod
support for tscadc on am43x-evm
On 13:16-20141031, Vignesh R wrote:
> This patch adds hwmod support for tscadc to work on am43xx-evm. The am33xx
> hwmod structures of tscadc has been moved to ipblock_data so that it can
> be reused in am43xx. The clock domain names are separately set for am33xx
> and am43xx. Thus tscadc dt entries can now be added to am43xx board
> dt files.
>
> Signed-off-by: Vignesh R <vigneshr@...com>
> ---
> .../mach-omap2/omap_hwmod_33xx_43xx_common_data.h | 1 +
> .../mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c | 64 ++++++++++++++++++++++
> arch/arm/mach-omap2/omap_hwmod_33xx_data.c | 49 -----------------
> arch/arm/mach-omap2/omap_hwmod_43xx_data.c | 1 +
> 4 files changed, 66 insertions(+), 49 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
> index 6e57b8ad0db5..b92a7c7825fa 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
> +++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
> @@ -65,6 +65,7 @@ extern struct omap_hwmod_ocp_if am33xx_l4_ls__timer4;
> extern struct omap_hwmod_ocp_if am33xx_l4_ls__timer5;
> extern struct omap_hwmod_ocp_if am33xx_l4_ls__timer6;
> extern struct omap_hwmod_ocp_if am33xx_l4_ls__timer7;
> +extern struct omap_hwmod_ocp_if am33xx_l4_wkup__adc_tsc;
> extern struct omap_hwmod_ocp_if am33xx_l3_main__tpcc;
> extern struct omap_hwmod_ocp_if am33xx_l3_main__tptc0;
> extern struct omap_hwmod_ocp_if am33xx_l3_main__tptc1;
> diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
> index 7f44922ab540..ef14e56a3968 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
> @@ -151,6 +151,54 @@ struct omap_hwmod_class am33xx_wkup_m3_hwmod_class = {
> };
>
> /*
> + * 'adc/tsc' class
> + * TouchScreen Controller (Anolog-To-Digital Converter)
> + */
> +static struct omap_hwmod_class_sysconfig am33xx_adc_tsc_sysc = {
> + .rev_offs = 0x00,
> + .sysc_offs = 0x10,
> + .sysc_flags = SYSC_HAS_SIDLEMODE,
> + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
> + SIDLE_SMART_WKUP),
> + .sysc_fields = &omap_hwmod_sysc_type2,
> +};
> +
> +static struct omap_hwmod_class am33xx_adc_tsc_hwmod_class = {
> + .name = "adc_tsc",
> + .sysc = &am33xx_adc_tsc_sysc,
> +};
> +
> +struct omap_hwmod am33xx_adc_tsc_hwmod = {
> + .name = "adc_tsc",
> + .class = &am33xx_adc_tsc_hwmod_class,
> + .clkdm_name = "l4_wkup_clkdm",
> + .main_clk = "adc_tsc_fck",
> + .prcm = {
> + .omap4 = {
> + .modulemode = MODULEMODE_SWCTRL,
> + },
> + },
> +};
> +
> +/* L4 WKUP -> ADC_TSC */
> +static struct omap_hwmod_addr_space am33xx_adc_tsc_addrs[] = {
> + {
> + .pa_start = 0x44E0D000,
> + .pa_end = 0x44E0D000 + SZ_8K - 1,
> + .flags = ADDR_TYPE_RT
> + },
> + { }
> +};
NAK. we dont want to see phy addresses in hwmod anymore. please add that
to DT. I suggest doing that clean up prior to this patch.
> +
> +struct omap_hwmod_ocp_if am33xx_l4_wkup__adc_tsc = {
> + .master = &am33xx_l4_wkup_hwmod,
> + .slave = &am33xx_adc_tsc_hwmod,
> + .clk = "dpll_core_m4_div2_ck",
> + .addr = am33xx_adc_tsc_addrs,
> + .user = OCP_USER_MPU,
> +};
> +
> +/*
> * 'pru-icss' class
> * Programmable Real-Time Unit and Industrial Communication Subsystem
> */
> @@ -1370,6 +1418,7 @@ static void omap_hwmod_am33xx_clkctrl(void)
> CLKCTRL(am33xx_timer5_hwmod, AM33XX_CM_PER_TIMER5_CLKCTRL_OFFSET);
> CLKCTRL(am33xx_timer6_hwmod, AM33XX_CM_PER_TIMER6_CLKCTRL_OFFSET);
> CLKCTRL(am33xx_timer7_hwmod, AM33XX_CM_PER_TIMER7_CLKCTRL_OFFSET);
> + CLKCTRL(am33xx_adc_tsc_hwmod, AM33XX_CM_WKUP_ADC_TSC_CLKCTRL_OFFSET);
> CLKCTRL(am33xx_smartreflex0_hwmod,
> AM33XX_CM_WKUP_SMARTREFLEX0_CLKCTRL_OFFSET);
> CLKCTRL(am33xx_smartreflex1_hwmod,
> @@ -1398,6 +1447,18 @@ static void omap_hwmod_am33xx_clkctrl(void)
> CLKCTRL(am33xx_aes0_hwmod , AM33XX_CM_PER_AES0_CLKCTRL_OFFSET);
> }
>
> +static void am33xx_hwmod_clockdomain(void)
> +{
> + am33xx_l4_hs_hwmod.clkdm_name = "l4hs_clkdm";
> + am33xx_adc_tsc_hwmod.clkdm_name = "l4_wkup_clkdm";
> +}
> +
> +static void am43xx_hwmod_clockdomain(void)
> +{
> + am33xx_l4_hs_hwmod.clkdm_name = "l3_clkdm";
> + am33xx_adc_tsc_hwmod.clkdm_name = "l3s_tsc_clkdm";
> +}
> +
maybe do something similar to CLKCTRL macro?
> static void omap_hwmod_am33xx_rst(void)
> {
> RSTCTRL(am33xx_pruss_hwmod, AM33XX_RM_PER_RSTCTRL_OFFSET);
> @@ -1409,6 +1470,7 @@ void omap_hwmod_am33xx_reg(void)
> {
> omap_hwmod_am33xx_clkctrl();
> omap_hwmod_am33xx_rst();
> + am33xx_hwmod_clockdomain();
> }
>
> static void omap_hwmod_am43xx_clkctrl(void)
> @@ -1443,6 +1505,7 @@ static void omap_hwmod_am43xx_clkctrl(void)
> CLKCTRL(am33xx_timer5_hwmod, AM43XX_CM_PER_TIMER5_CLKCTRL_OFFSET);
> CLKCTRL(am33xx_timer6_hwmod, AM43XX_CM_PER_TIMER6_CLKCTRL_OFFSET);
> CLKCTRL(am33xx_timer7_hwmod, AM43XX_CM_PER_TIMER7_CLKCTRL_OFFSET);
> + CLKCTRL(am33xx_adc_tsc_hwmod, AM43XX_CM_WKUP_ADC_TSC_CLKCTRL_OFFSET);
> CLKCTRL(am33xx_smartreflex0_hwmod,
> AM43XX_CM_WKUP_SMARTREFLEX0_CLKCTRL_OFFSET);
> CLKCTRL(am33xx_smartreflex1_hwmod,
> @@ -1482,4 +1545,5 @@ void omap_hwmod_am43xx_reg(void)
> {
> omap_hwmod_am43xx_clkctrl();
> omap_hwmod_am43xx_rst();
> + am43xx_hwmod_clockdomain();
> }
> diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
> index ce7d260495cb..c3ff14828850 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
> @@ -88,37 +88,6 @@ static struct omap_hwmod am33xx_wkup_m3_hwmod = {
> };
>
> /*
> - * 'adc/tsc' class
> - * TouchScreen Controller (Anolog-To-Digital Converter)
> - */
> -static struct omap_hwmod_class_sysconfig am33xx_adc_tsc_sysc = {
> - .rev_offs = 0x00,
> - .sysc_offs = 0x10,
> - .sysc_flags = SYSC_HAS_SIDLEMODE,
> - .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
> - SIDLE_SMART_WKUP),
> - .sysc_fields = &omap_hwmod_sysc_type2,
> -};
> -
> -static struct omap_hwmod_class am33xx_adc_tsc_hwmod_class = {
> - .name = "adc_tsc",
> - .sysc = &am33xx_adc_tsc_sysc,
> -};
> -
> -static struct omap_hwmod am33xx_adc_tsc_hwmod = {
> - .name = "adc_tsc",
> - .class = &am33xx_adc_tsc_hwmod_class,
> - .clkdm_name = "l4_wkup_clkdm",
> - .main_clk = "adc_tsc_fck",
> - .prcm = {
> - .omap4 = {
> - .clkctrl_offs = AM33XX_CM_WKUP_ADC_TSC_CLKCTRL_OFFSET,
> - .modulemode = MODULEMODE_SWCTRL,
> - },
> - },
> -};
> -
> -/*
> * Modules omap_hwmod structures
> *
> * The following IPs are excluded for the moment because:
> @@ -426,24 +395,6 @@ static struct omap_hwmod_ocp_if am33xx_l4_wkup__gpio0 = {
> .user = OCP_USER_MPU | OCP_USER_SDMA,
> };
>
> -/* L4 WKUP -> ADC_TSC */
> -static struct omap_hwmod_addr_space am33xx_adc_tsc_addrs[] = {
> - {
> - .pa_start = 0x44E0D000,
> - .pa_end = 0x44E0D000 + SZ_8K - 1,
> - .flags = ADDR_TYPE_RT
> - },
> - { }
> -};
> -
> -static struct omap_hwmod_ocp_if am33xx_l4_wkup__adc_tsc = {
> - .master = &am33xx_l4_wkup_hwmod,
> - .slave = &am33xx_adc_tsc_hwmod,
> - .clk = "dpll_core_m4_div2_ck",
> - .addr = am33xx_adc_tsc_addrs,
> - .user = OCP_USER_MPU,
> -};
> -
> static struct omap_hwmod_ocp_if am33xx_l4_hs__cpgmac0 = {
> .master = &am33xx_l4_hs_hwmod,
> .slave = &am33xx_cpgmac0_hwmod,
> diff --git a/arch/arm/mach-omap2/omap_hwmod_43xx_data.c b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
> index fea01aa3ef42..3ce8d28c0f9a 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
> @@ -809,6 +809,7 @@ static struct omap_hwmod_ocp_if *am43xx_hwmod_ocp_ifs[] __initdata = {
> &am33xx_l4_ls__timer5,
> &am33xx_l4_ls__timer6,
> &am33xx_l4_ls__timer7,
> + &am33xx_l4_wkup__adc_tsc,
> &am33xx_l3_main__tpcc,
> &am33xx_l4_ls__uart2,
> &am33xx_l4_ls__uart3,
> --
> 1.9.1
>
> --
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--
Regards,
Nishanth Menon
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