From 7a82ebd9ee78f8ba3a2ba66e003bfa57954a1a04 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Wed, 4 Apr 2012 08:25:25 -0600 Subject: ARM: OMAP44xx: clockdomain data: correct the emu_sys_clkdm CLKTRCTRL data MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit According to the 4430 ES2.0 TRM vX Table 3-744 "CM_EMU_CLKSTCTRL", the emu_sys clockdomain data in mainline is incorrect. The emu_sys clockdomain does not support the DISABLE_AUTO state, and instead it supports the FORCE_WAKEUP state. Signed-off-by: Paul Walmsley Cc: Benoît Cousson Cc: Kevin Hilman Cc: Santosh Shilimkar Cc: Ming Lei Cc: Will Deacon --- arch/arm/mach-omap2/clockdomains44xx_data.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c index 9299ac291d28..bd7ed13515cc 100644 --- a/arch/arm/mach-omap2/clockdomains44xx_data.c +++ b/arch/arm/mach-omap2/clockdomains44xx_data.c @@ -390,7 +390,7 @@ static struct clockdomain emu_sys_44xx_clkdm = { .prcm_partition = OMAP4430_PRM_PARTITION, .cm_inst = OMAP4430_PRM_EMU_CM_INST, .clkdm_offs = OMAP4430_PRM_EMU_CM_EMU_CDOFFS, - .flags = CLKDM_CAN_HWSUP, + .flags = CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_FORCE_WAKEUP, }; static struct clockdomain l3_dma_44xx_clkdm = { -- cgit v1.2.1 From 26c547fd130aae7480523a3af3f1df2ef1144743 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Fri, 16 Mar 2012 14:49:54 +0200 Subject: ARM: OMAP3xxx: HSMMC: avoid erratum workaround when transceiver is attached If transceiver is attached to a MMC host of ES2.1 OMAP35xx, it seems 2.1.1.128 erratum doesn't apply and there is no data corruption, probably because of different signal timing. The workaround for this erratum disables multiblock reads, which causes dramatic loss of performance (over 75% slower), so avoid it when transceiver is present. Cc: Paul Walmsley Signed-off-by: Grazvydas Ignotas [paul@pwsan.com: edited commit message slightly] Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/hsmmc.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index 100db6217f39..b0268eaffe13 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -506,6 +506,13 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo, if (oh->dev_attr != NULL) { mmc_dev_attr = oh->dev_attr; mmc_data->controller_flags = mmc_dev_attr->flags; + /* + * erratum 2.1.1.128 doesn't apply if board has + * a transceiver is attached + */ + if (hsmmcinfo->transceiver) + mmc_data->controller_flags &= + ~OMAP_HSMMC_BROKEN_MULTIBLOCK_READ; } pdev = platform_device_alloc(name, ctrl_nr - 1); -- cgit v1.2.1 From ac387330a67635b4e4b946416e792bc9dd4b8f05 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Mon, 26 Mar 2012 00:08:07 +0300 Subject: ARM: OMAP3xxx: clock data: fix DPLL4 CLKSEL masks Commit 2a9f5a4d455 "OMAP3 clock: remove unnecessary duplicate of dpll4_m2_ck, added for 36xx" consolidated dpll4 clock structures between 34xx and 36xx, but left 34xx CLKSEL masks for most dpll4 related clocks, which causes clock code to not behave correctly when booting on DM3730 with higher (36xx only) divisors set: [ 0.000000] WARNING: at arch/arm/mach-omap2/clkt_clksel.c:375 omap2_init_clksel_parent+0x104/0x114() [ 0.000000] clock: dpll4_m3_ck: init parent: could not find regval 0 [ 0.000000] WARNING: at arch/arm/mach-omap2/clkt_clksel.c:194 omap2_clksel_recalc+0xd4/0xe4() [ 0.000000] clock: Could not find fieldval 0 for clock dpll4_m3_ck parent dpll4_ck Fix this by switching to 36xx masks, as valid divisors will be limited by clksel_rate lists. Cc: Paul Walmsley Signed-off-by: Grazvydas Ignotas Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/clock3xxx_data.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c index 480fb8f09aed..19c1dc877222 100644 --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -747,7 +747,7 @@ static struct clk dpll4_m3_ck = { .parent = &dpll4_ck, .init = &omap2_init_clksel_parent, .clksel_reg = OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_CLKSEL), - .clksel_mask = OMAP3430_CLKSEL_TV_MASK, + .clksel_mask = OMAP3630_CLKSEL_TV_MASK, .clksel = dpll4_clksel, .clkdm_name = "dpll4_clkdm", .recalc = &omap2_clksel_recalc, @@ -832,7 +832,7 @@ static struct clk dpll4_m4_ck = { .parent = &dpll4_ck, .init = &omap2_init_clksel_parent, .clksel_reg = OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_CLKSEL), - .clksel_mask = OMAP3430_CLKSEL_DSS1_MASK, + .clksel_mask = OMAP3630_CLKSEL_DSS1_MASK, .clksel = dpll4_clksel, .clkdm_name = "dpll4_clkdm", .recalc = &omap2_clksel_recalc, @@ -859,7 +859,7 @@ static struct clk dpll4_m5_ck = { .parent = &dpll4_ck, .init = &omap2_init_clksel_parent, .clksel_reg = OMAP_CM_REGADDR(OMAP3430_CAM_MOD, CM_CLKSEL), - .clksel_mask = OMAP3430_CLKSEL_CAM_MASK, + .clksel_mask = OMAP3630_CLKSEL_CAM_MASK, .clksel = dpll4_clksel, .clkdm_name = "dpll4_clkdm", .set_rate = &omap2_clksel_set_rate, @@ -886,7 +886,7 @@ static struct clk dpll4_m6_ck = { .parent = &dpll4_ck, .init = &omap2_init_clksel_parent, .clksel_reg = OMAP_CM_REGADDR(OMAP3430_EMU_MOD, CM_CLKSEL1), - .clksel_mask = OMAP3430_DIV_DPLL4_MASK, + .clksel_mask = OMAP3630_DIV_DPLL4_MASK, .clksel = dpll4_clksel, .clkdm_name = "dpll4_clkdm", .recalc = &omap2_clksel_recalc, -- cgit v1.2.1 From 503d0ea24d1d3dd3db95e5e0edd693da7a2a23eb Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Wed, 4 Apr 2012 09:11:48 -0600 Subject: ARM: OMAP4: hwmod data: Add aliases for McBSP fclk clocks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit CLKS signal for McBSP ports can be selected from internal (PRCM) or external (ABE_CLKS pin) source. To be able to use existing code we need to create clock aliases consistent among OMAP2/3/4. Based on a patch from Péter Ujfalusi ; the patch description above is his. Signed-off-by: Paul Walmsley Cc: Péter Ujfalusi Cc: Tony Lindgren Acked-by: Peter Ujfalusi --- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 08daa5e0eb5f..cc9bd106a854 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -2996,6 +2996,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp1_slaves[] = { &omap44xx_l4_abe__mcbsp1_dma, }; +static struct omap_hwmod_opt_clk mcbsp1_opt_clks[] = { + { .role = "pad_fck", .clk = "pad_clks_ck" }, + { .role = "prcm_clk", .clk = "mcbsp1_sync_mux_ck" }, +}; + static struct omap_hwmod omap44xx_mcbsp1_hwmod = { .name = "mcbsp1", .class = &omap44xx_mcbsp_hwmod_class, @@ -3012,6 +3017,8 @@ static struct omap_hwmod omap44xx_mcbsp1_hwmod = { }, .slaves = omap44xx_mcbsp1_slaves, .slaves_cnt = ARRAY_SIZE(omap44xx_mcbsp1_slaves), + .opt_clks = mcbsp1_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp1_opt_clks), }; /* mcbsp2 */ @@ -3071,6 +3078,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp2_slaves[] = { &omap44xx_l4_abe__mcbsp2_dma, }; +static struct omap_hwmod_opt_clk mcbsp2_opt_clks[] = { + { .role = "pad_fck", .clk = "pad_clks_ck" }, + { .role = "prcm_clk", .clk = "mcbsp2_sync_mux_ck" }, +}; + static struct omap_hwmod omap44xx_mcbsp2_hwmod = { .name = "mcbsp2", .class = &omap44xx_mcbsp_hwmod_class, @@ -3087,6 +3099,8 @@ static struct omap_hwmod omap44xx_mcbsp2_hwmod = { }, .slaves = omap44xx_mcbsp2_slaves, .slaves_cnt = ARRAY_SIZE(omap44xx_mcbsp2_slaves), + .opt_clks = mcbsp2_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp2_opt_clks), }; /* mcbsp3 */ @@ -3146,6 +3160,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp3_slaves[] = { &omap44xx_l4_abe__mcbsp3_dma, }; +static struct omap_hwmod_opt_clk mcbsp3_opt_clks[] = { + { .role = "pad_fck", .clk = "pad_clks_ck" }, + { .role = "prcm_clk", .clk = "mcbsp3_sync_mux_ck" }, +}; + static struct omap_hwmod omap44xx_mcbsp3_hwmod = { .name = "mcbsp3", .class = &omap44xx_mcbsp_hwmod_class, @@ -3162,6 +3181,8 @@ static struct omap_hwmod omap44xx_mcbsp3_hwmod = { }, .slaves = omap44xx_mcbsp3_slaves, .slaves_cnt = ARRAY_SIZE(omap44xx_mcbsp3_slaves), + .opt_clks = mcbsp3_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp3_opt_clks), }; /* mcbsp4 */ @@ -3200,6 +3221,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp4_slaves[] = { &omap44xx_l4_per__mcbsp4, }; +static struct omap_hwmod_opt_clk mcbsp4_opt_clks[] = { + { .role = "pad_fck", .clk = "pad_clks_ck" }, + { .role = "prcm_clk", .clk = "mcbsp4_sync_mux_ck" }, +}; + static struct omap_hwmod omap44xx_mcbsp4_hwmod = { .name = "mcbsp4", .class = &omap44xx_mcbsp_hwmod_class, @@ -3216,6 +3242,8 @@ static struct omap_hwmod omap44xx_mcbsp4_hwmod = { }, .slaves = omap44xx_mcbsp4_slaves, .slaves_cnt = ARRAY_SIZE(omap44xx_mcbsp4_slaves), + .opt_clks = mcbsp4_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp4_opt_clks), }; /* -- cgit v1.2.1 From 59269b94483eabeacbc9a535944b3dafac92a303 Mon Sep 17 00:00:00 2001 From: Ilya Yanok Date: Wed, 21 Dec 2011 00:27:14 +0100 Subject: ARM: OMAP AM3517/3505: clock data: change EMAC clocks aliases Rename EMAC clocks to match driver expectations: both davinci_emac and davinci_mdio drivers call clk_get(dev, NULL) so we have to provide ("davinci_emac", NULL) and ("davinci_mdio.0", NULL) clocks instead of ("davinci_emac", "emac_clk") and ("davinci_emac", "phy_clk") resp. Cc: Paul Walmsley Signed-off-by: Ilya Yanok Tested-by: Yegor Yefremov Tested-by: Matt Porter Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/clock3xxx_data.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c index 19c1dc877222..f3a9a4a0aa04 100644 --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -3467,8 +3467,8 @@ static struct omap_clk omap3xxx_clks[] = { CLK(NULL, "ipss_ick", &ipss_ick, CK_AM35XX), CLK(NULL, "rmii_ck", &rmii_ck, CK_AM35XX), CLK(NULL, "pclk_ck", &pclk_ck, CK_AM35XX), - CLK("davinci_emac", "emac_clk", &emac_ick, CK_AM35XX), - CLK("davinci_emac", "phy_clk", &emac_fck, CK_AM35XX), + CLK("davinci_emac", NULL, &emac_ick, CK_AM35XX), + CLK("davinci_mdio.0", NULL, &emac_fck, CK_AM35XX), CLK("vpfe-capture", "master", &vpfe_ick, CK_AM35XX), CLK("vpfe-capture", "slave", &vpfe_fck, CK_AM35XX), CLK("musb-am35x", "ick", &hsotgusb_ick_am35xx, CK_AM35XX), -- cgit v1.2.1 From 8b8c3c7895dc8dcf60c58b23bc9231f4ee7887a2 Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Mon, 12 Mar 2012 20:04:32 +0530 Subject: ARM: OMAP2+: powerdomain: Wait for powerdomain transition in pwrdm_state_switch() Commit b1cbdb00d ("OMAP: clockdomain: Wait for powerdomain to be ON when using clockdomain force wakeup") was assuming that pwrdm_state_switch() does wait for the powerdomain transition which is not the case. The missing wait for the powerdomain transition violates the sequence which the hardware expects, which causes power management failures on some devices. Fix this API by adding the pwrdm_wait_transition(). Signed-off-by: Santosh Shilimkar Cc: Rajendra Nayak Cc: Paul Walmsley [paul@pwsan.com: added some more details in the commit log] Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/powerdomain.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c index 8a18d1bd61c8..96ad3dbeac34 100644 --- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/powerdomain.c @@ -972,7 +972,13 @@ int pwrdm_wait_transition(struct powerdomain *pwrdm) int pwrdm_state_switch(struct powerdomain *pwrdm) { - return _pwrdm_state_switch(pwrdm, PWRDM_STATE_NOW); + int ret; + + ret = pwrdm_wait_transition(pwrdm); + if (!ret) + ret = _pwrdm_state_switch(pwrdm, PWRDM_STATE_NOW); + + return ret; } int pwrdm_clkdm_state_switch(struct clockdomain *clkdm) -- cgit v1.2.1 From 91a290c4573679a70e242495ac3dbf12b39fb108 Mon Sep 17 00:00:00 2001 From: Ameya Palande Date: Wed, 4 Apr 2012 10:19:31 -0600 Subject: ARM: OMAP4: clock data: fix mult and div mask for USB_DPLL According to OMAP4 TRM Table 3-1183, CM_CLKSEL_DPLL_USB register defines following fields for multiplication and division factors: DPLL_MULT (bits 19:8) DPLL multiplier factor (2 to 4095) DPLL_DIV (bits 7:0) DPLL divider factor (0 to 255) Acked-by: Benoit Cousson Signed-off-by: Ameya Palande Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/clock44xx_data.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c index c03c1108468e..984904fcd244 100644 --- a/arch/arm/mach-omap2/clock44xx_data.c +++ b/arch/arm/mach-omap2/clock44xx_data.c @@ -957,8 +957,8 @@ static struct dpll_data dpll_usb_dd = { .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .autoidle_reg = OMAP4430_CM_AUTOIDLE_DPLL_USB, .idlest_reg = OMAP4430_CM_IDLEST_DPLL_USB, - .mult_mask = OMAP4430_DPLL_MULT_MASK, - .div1_mask = OMAP4430_DPLL_DIV_MASK, + .mult_mask = OMAP4430_DPLL_MULT_USB_MASK, + .div1_mask = OMAP4430_DPLL_DIV_0_7_MASK, .enable_mask = OMAP4430_DPLL_EN_MASK, .autoidle_mask = OMAP4430_AUTO_DPLL_MODE_MASK, .idlest_mask = OMAP4430_ST_DPLL_CLK_MASK, -- cgit v1.2.1 From 6c4a057bffe9823221eab547e11fac181dc18a2b Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Wed, 4 Apr 2012 10:20:01 -0600 Subject: ARM: OMAP4: clock data: Force a DPLL clkdm/pwrdm ON before a relock All DPLLs except USB are in ALWON powerdomain. Make sure the clkdm/pwrdm for USB DPLL (l3init) is turned on before attempting a DPLL relock. So, mark the database accordingly. Without this fix, it was seen that DPLL relock fails while testing relock in a loop of USB DPLL. Cc: Nishanth Menon Tested-by: Ameya Palande Signed-off-by: Rajendra Nayak Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/clock44xx_data.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c index 984904fcd244..fa6ea65ad44b 100644 --- a/arch/arm/mach-omap2/clock44xx_data.c +++ b/arch/arm/mach-omap2/clock44xx_data.c @@ -978,6 +978,7 @@ static struct clk dpll_usb_ck = { .recalc = &omap3_dpll_recalc, .round_rate = &omap2_dpll_round_rate, .set_rate = &omap3_noncore_dpll_set_rate, + .clkdm_name = "l3_init_clkdm", }; static struct clk dpll_usb_clkdcoldo_ck = { -- cgit v1.2.1 From 5897a391d41d42f19285376a4ad1320d452c2946 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Wed, 4 Apr 2012 10:20:15 -0600 Subject: ARM: OMAP3: clock data: fill in some missing clockdomains Several clocks are missing clockdomains. This can cause problems with the hwmod and power management code. Fill these in. Signed-off-by: Paul Walmsley Cc: Matt Porter Cc: Vaibhav Hiremath --- arch/arm/mach-omap2/clock3xxx_data.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c index f3a9a4a0aa04..f4a626f7c79e 100644 --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -1394,6 +1394,7 @@ static struct clk cpefuse_fck = { .name = "cpefuse_fck", .ops = &clkops_omap2_dflt, .parent = &sys_ck, + .clkdm_name = "core_l4_clkdm", .enable_reg = OMAP_CM_REGADDR(CORE_MOD, OMAP3430ES2_CM_FCLKEN3), .enable_bit = OMAP3430ES2_EN_CPEFUSE_SHIFT, .recalc = &followparent_recalc, @@ -1403,6 +1404,7 @@ static struct clk ts_fck = { .name = "ts_fck", .ops = &clkops_omap2_dflt, .parent = &omap_32k_fck, + .clkdm_name = "core_l4_clkdm", .enable_reg = OMAP_CM_REGADDR(CORE_MOD, OMAP3430ES2_CM_FCLKEN3), .enable_bit = OMAP3430ES2_EN_TS_SHIFT, .recalc = &followparent_recalc, @@ -1412,6 +1414,7 @@ static struct clk usbtll_fck = { .name = "usbtll_fck", .ops = &clkops_omap2_dflt_wait, .parent = &dpll5_m2_ck, + .clkdm_name = "core_l4_clkdm", .enable_reg = OMAP_CM_REGADDR(CORE_MOD, OMAP3430ES2_CM_FCLKEN3), .enable_bit = OMAP3430ES2_EN_USBTLL_SHIFT, .recalc = &followparent_recalc, @@ -1617,6 +1620,7 @@ static struct clk fshostusb_fck = { .name = "fshostusb_fck", .ops = &clkops_omap2_dflt_wait, .parent = &core_48m_fck, + .clkdm_name = "core_l4_clkdm", .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1), .enable_bit = OMAP3430ES1_EN_FSHOSTUSB_SHIFT, .recalc = &followparent_recalc, @@ -2043,6 +2047,7 @@ static struct clk omapctrl_ick = { .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1), .enable_bit = OMAP3430_EN_OMAPCTRL_SHIFT, .flags = ENABLE_ON_INIT, + .clkdm_name = "core_l4_clkdm", .recalc = &followparent_recalc, }; @@ -2094,6 +2099,7 @@ static struct clk usb_l4_ick = { .clksel_reg = OMAP_CM_REGADDR(CORE_MOD, CM_CLKSEL), .clksel_mask = OMAP3430ES1_CLKSEL_FSHOSTUSB_MASK, .clksel = usb_l4_clksel, + .clkdm_name = "core_l4_clkdm", .recalc = &omap2_clksel_recalc, }; -- cgit v1.2.1 From 2a1cc1445a51e3a81c10d294586756cdb9174469 Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Thu, 5 Apr 2012 02:59:32 -0600 Subject: ARM: OMAP2+: omap_hwmod: Allow io_ring wakeup configuration for all modules Some modules doesn't have SYSC_HAS_ENAWAKEUP bit available (ex: usb host uhh module) in absence of this flag omap_hwmod_enable/disable_wakeup avoids configuring pad mux wakeup capability. Configure sysc if SYSC_HAS_ENAWAKEUP is available and for other cases try enabling/disabling wakeup from mux_pad pins. Cc: Paul Walmsley Cc: Kevin Hilman Cc: Rajendra Nayak Signed-off-by: Govindraj.R [paul@pwsan.com: updated function kerneldoc documentation] Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod.c | 56 +++++++++++++++++++++------------------- 1 file changed, 30 insertions(+), 26 deletions(-) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index eba6cd3816f5..5a680108195b 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -2463,26 +2463,28 @@ int omap_hwmod_del_initiator_dep(struct omap_hwmod *oh, * @oh: struct omap_hwmod * * * Sets the module OCP socket ENAWAKEUP bit to allow the module to - * send wakeups to the PRCM. Eventually this should sets PRCM wakeup - * registers to cause the PRCM to receive wakeup events from the - * module. Does not set any wakeup routing registers beyond this - * point - if the module is to wake up any other module or subsystem, - * that must be set separately. Called by omap_device code. Returns - * -EINVAL on error or 0 upon success. + * send wakeups to the PRCM, and enable I/O ring wakeup events for + * this IP block if it has dynamic mux entries. Eventually this + * should set PRCM wakeup registers to cause the PRCM to receive + * wakeup events from the module. Does not set any wakeup routing + * registers beyond this point - if the module is to wake up any other + * module or subsystem, that must be set separately. Called by + * omap_device code. Returns -EINVAL on error or 0 upon success. */ int omap_hwmod_enable_wakeup(struct omap_hwmod *oh) { unsigned long flags; u32 v; - if (!oh->class->sysc || - !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)) - return -EINVAL; - spin_lock_irqsave(&oh->_lock, flags); - v = oh->_sysc_cache; - _enable_wakeup(oh, &v); - _write_sysconfig(v, oh); + + if (oh->class->sysc && + (oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)) { + v = oh->_sysc_cache; + _enable_wakeup(oh, &v); + _write_sysconfig(v, oh); + } + _set_idle_ioring_wakeup(oh, true); spin_unlock_irqrestore(&oh->_lock, flags); @@ -2494,26 +2496,28 @@ int omap_hwmod_enable_wakeup(struct omap_hwmod *oh) * @oh: struct omap_hwmod * * * Clears the module OCP socket ENAWAKEUP bit to prevent the module - * from sending wakeups to the PRCM. Eventually this should clear - * PRCM wakeup registers to cause the PRCM to ignore wakeup events - * from the module. Does not set any wakeup routing registers beyond - * this point - if the module is to wake up any other module or - * subsystem, that must be set separately. Called by omap_device - * code. Returns -EINVAL on error or 0 upon success. + * from sending wakeups to the PRCM, and disable I/O ring wakeup + * events for this IP block if it has dynamic mux entries. Eventually + * this should clear PRCM wakeup registers to cause the PRCM to ignore + * wakeup events from the module. Does not set any wakeup routing + * registers beyond this point - if the module is to wake up any other + * module or subsystem, that must be set separately. Called by + * omap_device code. Returns -EINVAL on error or 0 upon success. */ int omap_hwmod_disable_wakeup(struct omap_hwmod *oh) { unsigned long flags; u32 v; - if (!oh->class->sysc || - !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)) - return -EINVAL; - spin_lock_irqsave(&oh->_lock, flags); - v = oh->_sysc_cache; - _disable_wakeup(oh, &v); - _write_sysconfig(v, oh); + + if (oh->class->sysc && + (oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)) { + v = oh->_sysc_cache; + _disable_wakeup(oh, &v); + _write_sysconfig(v, oh); + } + _set_idle_ioring_wakeup(oh, false); spin_unlock_irqrestore(&oh->_lock, flags); -- cgit v1.2.1 From 2800852a079504f35f88e44faf5c9c96318c0cca Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Tue, 13 Mar 2012 22:55:23 +0530 Subject: ARM: OMAP2+: hwmod: Restore sysc after a reset After a softreset, make sure the sysc settings are correctly restored. Reported-by: Anand Gadiyar Signed-off-by: Rajendra Nayak Cc: Benoit Cousson Cc: Paul Walmsley Cc: Shubhrajyoti D [paul@pwsan.com: combined post-reset SYSCONFIG reload code into the _reset() function to avoid duplication and future mistakes] Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod.c | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 5a680108195b..d32c1ce4f3ab 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1477,6 +1477,11 @@ static int _reset(struct omap_hwmod *oh) ret = (oh->class->reset) ? oh->class->reset(oh) : _ocp_softreset(oh); + if (oh->class->sysc) { + _update_sysc_cache(oh); + _enable_sysc(oh); + } + return ret; } @@ -1786,20 +1791,9 @@ static int _setup(struct omap_hwmod *oh, void *data) return 0; } - if (!(oh->flags & HWMOD_INIT_NO_RESET)) { + if (!(oh->flags & HWMOD_INIT_NO_RESET)) _reset(oh); - /* - * OCP_SYSCONFIG bits need to be reprogrammed after a softreset. - * The _enable() function should be split to - * avoid the rewrite of the OCP_SYSCONFIG register. - */ - if (oh->class->sysc) { - _update_sysc_cache(oh); - _enable_sysc(oh); - } - } - postsetup_state = oh->_postsetup_state; if (postsetup_state == _HWMOD_STATE_UNKNOWN) postsetup_state = _HWMOD_STATE_ENABLED; -- cgit v1.2.1 From f9a2f9c3fa76eec55928e8e06f3094c8f01df7cb Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Tue, 13 Mar 2012 22:55:24 +0530 Subject: ARM: OMAP2+: hwmod: Make omap_hwmod_softreset wait for reset status omap_hwmod_softreset() does not seem to wait for reset status after doing a softreset. Make it use _ocp_softreset() instead which does this correctly. Signed-off-by: Rajendra Nayak Cc: Benoit Cousson Cc: Paul Walmsley Cc: Anand Gadiyar Cc: Shubhrajyoti D Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'arch/arm/mach-omap2') diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index d32c1ce4f3ab..72903d42ab0d 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1901,20 +1901,10 @@ void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs) */ int omap_hwmod_softreset(struct omap_hwmod *oh) { - u32 v; - int ret; - - if (!oh || !(oh->_sysc_cache)) + if (!oh) return -EINVAL; - v = oh->_sysc_cache; - ret = _set_softreset(oh, &v); - if (ret) - goto error; - _write_sysconfig(v, oh); - -error: - return ret; + return _ocp_softreset(oh); } /** -- cgit v1.2.1