From: "Menon, Nishanth" <nm@ti.com>
To: Tero.Kristo@Nokia.com
Cc: khilman@deeprootsystems.com, linux-omap@vger.kernel.org
Subject: Re: [PATCH 03/10 V3] omap3: pm: use opp accessor functions for omap34xx
Date: Tue, 08 Dec 2009 05:16:03 -0600 [thread overview]
Message-ID: <4B1E3573.4060305@ti.com> (raw)
In-Reply-To: <1F18D6510CF0474A8C9500565A7E41A2236EC9201F@NOK-EUMSG-02.mgdnok.nokia.com>
Tero.Kristo@Nokia.com said the following on 12/07/2009 11:02 AM:
> One additional comment to this patch, compilation of board-rx51.c fails unless #include "pm.h" is added to it. This might be true for other boards also seeing it has been added to zoom2 at least.
>
Huh.. Weird, I did build and test with omap3_pm_defconfig -> rx51 should
have been part of the build.. will check also next time..
>
>> -----Original Message-----
>> From: linux-omap-owner@vger.kernel.org
>> [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of ext Kevin Hilman
>> Sent: 25 November, 2009 19:22
>> To: Nishanth Menon
>> Cc: linux-omap
>> Subject: Re: [PATCH 03/10 V3] omap3: pm: use opp accessor
>> functions for omap34xx
>>
>> Nishanth Menon <nm@ti.com> writes:
>>
>>
>>> Move the definitions from omap3-opp.h to pm34xx.c. The definitions
>>> are now based on omap_opp_def instead of omap_opp itself.
>>> Since the opp.h has the omap_opp definition, omap-pm.h conflicts and
>>> has been removed in favor of opp.h.
>>>
>> ok
>>
>>
>>> omap3_pm_init_opp_table is used to initialize the OPP table and
>>> relevant board files which have omap2_init_common_hw called with opp
>>> arrays have been updated with omap3_pm_init_opp_table.
>>>
>>> This change now allows us to dynamically register OPPs to the system
>>> based on silicon type we detect.
>>>
>> Nice.
>>
>> With this patch, I would suggest a couple more cleanups in how
>> we are handling
>> the master OPP lists for MPU, DSP and L3.
>>
>> Namely, It's time we could remove the rate_table passing from the OMAP
>> PM layer all together and just keep them as pointers in opp.h.
>>
>> The longer term goal is to remove OPP handling from OMAP PM
>> all together,
>> so this will be a step in that direction.
>>
>> I've attached a patch that applies on top of your series that drops
>> the OPPs from OMAP PM layer. After doing this, we now have some
>> duplicate global pointers to the various rate tables that could be
>> cleaned up. In addition, all the rate tables could be dropped from
>> init_common_hw.
>>
>> If you follow my proposal for using opp_add() instead of opp_init()
>> the board files that want to just use default OPPs do not have to do
>> anyting with the rate tables. Only board files wanting to add OPPs
>> would have to include opp.h and use opp_add().
>>
>> Also, dropping the rate tables from init_common_hw would mean you
>> shouldn't have init sequence issues anymore and you can do the OPP
>> init inside existing PM init.
>>
>> Kevin
>>
>>
>>> NOTE: This introduces the following warnings highlighting areas we
>>> need to cleanup:
>>> arch/arm/mach-omap2/smartreflex.c: In function 'get_opp':
>>> arch/arm/mach-omap2/smartreflex.c:161: warning: 'opp_id' is
>>>
>> deprecated (declared at arch/arm/plat-omap/include/plat/opp.h:33)
>>
>>> arch/arm/mach-omap2/smartreflex.c:164: warning: 'opp_id' is
>>>
>> deprecated (declared at arch/arm/plat-omap/include/plat/opp.h:33)
>>
>>> arch/arm/mach-omap2/smartreflex.c:166: warning: 'opp_id' is
>>>
>> deprecated (declared at arch/arm/plat-omap/include/plat/opp.h:33)
>>
>>> arch/arm/mach-omap2/smartreflex.c:168: warning: 'opp_id' is
>>>
>> deprecated (declared at arch/arm/plat-omap/include/plat/opp.h:33)
>>
>>> arch/arm/mach-omap2/resource34xx.c: In function 'get_opp':
>>> arch/arm/mach-omap2/resource34xx.c:165: warning: 'opp_id' is
>>>
>> deprecated (declared at arch/arm/plat-omap/include/plat/opp.h:33)
>>
>>> arch/arm/mach-omap2/resource34xx.c:168: warning: 'opp_id' is
>>>
>> deprecated (declared at arch/arm/plat-omap/include/plat/opp.h:33)
>>
>>> arch/arm/mach-omap2/resource34xx.c:170: warning: 'opp_id' is
>>>
>> deprecated (declared at arch/arm/plat-omap/include/plat/opp.h:33)
>>
>>> arch/arm/mach-omap2/resource34xx.c:172: warning: 'opp_id' is
>>>
>> deprecated (declared at arch/arm/plat-omap/include/plat/opp.h:33)
>>
>>> arch/arm/mach-omap2/resource34xx.c: In function 'program_opp':
>>> arch/arm/mach-omap2/resource34xx.c:284: warning: 'opp_id' is
>>>
>> deprecated (declared at arch/arm/plat-omap/include/plat/opp.h:33)
>>
>>> arch/arm/mach-omap2/resource34xx.c:285: warning: 'opp_id' is
>>>
>> deprecated (declared at arch/arm/plat-omap/include/plat/opp.h:33)
>>
>>> Signed-off-by: Nishanth Menon <nm@ti.com>
>>> ---
>>> arch/arm/mach-omap2/board-3430sdp.c | 1 +
>>> arch/arm/mach-omap2/board-omap3beagle.c | 1 +
>>> arch/arm/mach-omap2/board-omap3evm.c | 1 +
>>> arch/arm/mach-omap2/board-rx51.c | 1 +
>>> arch/arm/mach-omap2/board-zoom2.c | 2 +
>>> arch/arm/mach-omap2/omap3-opp.h | 58
>>>
>> +-----------------------
>>
>>> arch/arm/mach-omap2/pm.h | 6 +++
>>> arch/arm/mach-omap2/pm34xx.c | 68
>>>
>> +++++++++++++++++++++++++++++
>>
>>> arch/arm/plat-omap/include/plat/omap-pm.h | 17 +-------
>>> 9 files changed, 84 insertions(+), 71 deletions(-)
>>>
>>> diff --git a/arch/arm/mach-omap2/board-3430sdp.c
>>>
>> b/arch/arm/mach-omap2/board-3430sdp.c
>>
>>> index eac529f..0ec8327 100644
>>> --- a/arch/arm/mach-omap2/board-3430sdp.c
>>> +++ b/arch/arm/mach-omap2/board-3430sdp.c
>>> @@ -220,6 +220,7 @@ static void __init omap_3430sdp_init_irq(void)
>>> {
>>> omap_board_config = sdp3430_config;
>>> omap_board_config_size = ARRAY_SIZE(sdp3430_config);
>>> + omap3_pm_init_opp_table();
>>> omap3_pm_init_vc(&omap3_setuptime_table);
>>> omap3_pm_init_cpuidle(omap3_cpuidle_params_table);
>>> omap2_init_common_hw(hyb18m512160af6_sdrc_params, NULL,
>>>
>> omap3_mpu_rate_table,
>>
>>> diff --git a/arch/arm/mach-omap2/board-omap3beagle.c
>>>
>> b/arch/arm/mach-omap2/board-omap3beagle.c
>>
>>> index 2ec3520..a937238 100644
>>> --- a/arch/arm/mach-omap2/board-omap3beagle.c
>>> +++ b/arch/arm/mach-omap2/board-omap3beagle.c
>>> @@ -361,6 +361,7 @@ static void __init omap3_beagle_init_irq(void)
>>> {
>>> omap_board_config = omap3_beagle_config;
>>> omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
>>> + omap3_pm_init_opp_table();
>>> omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
>>> mt46h32m32lf6_sdrc_params,
>>>
>> omap3_mpu_rate_table,
>>
>>> omap3_dsp_rate_table, omap3_l3_rate_table);
>>> diff --git a/arch/arm/mach-omap2/board-omap3evm.c
>>>
>> b/arch/arm/mach-omap2/board-omap3evm.c
>>
>>> index 8130eca..44a5861 100644
>>> --- a/arch/arm/mach-omap2/board-omap3evm.c
>>> +++ b/arch/arm/mach-omap2/board-omap3evm.c
>>> @@ -404,6 +404,7 @@ static void __init omap3_evm_init_irq(void)
>>> {
>>> omap_board_config = omap3_evm_config;
>>> omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
>>> + omap3_pm_init_opp_table();
>>> omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL,
>>>
>> omap3_mpu_rate_table,
>>
>>> omap3_dsp_rate_table, omap3_l3_rate_table);
>>> omap_init_irq();
>>> diff --git a/arch/arm/mach-omap2/board-rx51.c
>>>
>> b/arch/arm/mach-omap2/board-rx51.c
>>
>>> index 2f1c2be..997fd1c 100644
>>> --- a/arch/arm/mach-omap2/board-rx51.c
>>> +++ b/arch/arm/mach-omap2/board-rx51.c
>>> @@ -103,6 +103,7 @@ static void __init rx51_init_irq(void)
>>>
>>> omap_board_config = rx51_config;
>>> omap_board_config_size = ARRAY_SIZE(rx51_config);
>>> + omap3_pm_init_opp_table();
>>> omap3_pm_init_cpuidle(rx51_cpuidle_params);
>>> sdrc_params = rx51_get_sdram_timings();
>>> omap2_init_common_hw(sdrc_params, sdrc_params,
>>> diff --git a/arch/arm/mach-omap2/board-zoom2.c
>>>
>> b/arch/arm/mach-omap2/board-zoom2.c
>>
>>> index dcc5fb8..9d5b078 100644
>>> --- a/arch/arm/mach-omap2/board-zoom2.c
>>> +++ b/arch/arm/mach-omap2/board-zoom2.c
>>> @@ -24,10 +24,12 @@
>>> #include <mach/board-zoom.h>
>>>
>>> #include "sdram-micron-mt46h32m32lf-6.h"
>>> +#include "pm.h"
>>> #include "omap3-opp.h"
>>>
>>> static void __init omap_zoom2_init_irq(void)
>>> {
>>> + omap3_pm_init_opp_table();
>>> omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
>>> mt46h32m32lf6_sdrc_params,
>>>
>> omap3_mpu_rate_table,
>>
>>> omap3_dsp_rate_table,
>>>
>> omap3_l3_rate_table);
>>
>>> diff --git a/arch/arm/mach-omap2/omap3-opp.h
>>>
>> b/arch/arm/mach-omap2/omap3-opp.h
>>
>>> index 42557e1..994d8d4 100644
>>> --- a/arch/arm/mach-omap2/omap3-opp.h
>>> +++ b/arch/arm/mach-omap2/omap3-opp.h
>>> @@ -3,60 +3,8 @@
>>>
>>> #include <plat/omap-pm.h>
>>>
>>> -/* MPU speeds */
>>> -#define S600M 600000000
>>> -#define S550M 550000000
>>> -#define S500M 500000000
>>> -#define S250M 250000000
>>> -#define S125M 125000000
>>> -
>>> -/* DSP speeds */
>>> -#define S430M 430000000
>>> -#define S400M 400000000
>>> -#define S360M 360000000
>>> -#define S180M 180000000
>>> -#define S90M 90000000
>>> -
>>> -/* L3 speeds */
>>> -#define S83M 83000000
>>> -#define S166M 166000000
>>> -
>>> -static struct omap_opp omap3_mpu_rate_table[] = {
>>> - {0, 0, 0, 0},
>>> - /*OPP1*/
>>> - {true, S125M, VDD1_OPP1, 0x1E},
>>> - /*OPP2*/
>>> - {true, S250M, VDD1_OPP2, 0x26},
>>> - /*OPP3*/
>>> - {true, S500M, VDD1_OPP3, 0x30},
>>> - /*OPP4*/
>>> - {true, S550M, VDD1_OPP4, 0x36},
>>> - /*OPP5*/
>>> - {true, S600M, VDD1_OPP5, 0x3C},
>>> -};
>>> -
>>> -static struct omap_opp omap3_l3_rate_table[] = {
>>> - {0, 0, 0, 0},
>>> - /*OPP1*/
>>> - {false, 0, VDD2_OPP1, 0x1E},
>>> - /*OPP2*/
>>> - {true, S83M, VDD2_OPP2, 0x24},
>>> - /*OPP3*/
>>> - {true, S166M, VDD2_OPP3, 0x2C},
>>> -};
>>> -
>>> -static struct omap_opp omap3_dsp_rate_table[] = {
>>> - {0, 0, 0, 0},
>>> - /*OPP1*/
>>> - {true, S90M, VDD1_OPP1, 0x1E},
>>> - /*OPP2*/
>>> - {true, S180M, VDD1_OPP2, 0x26},
>>> - /*OPP3*/
>>> - {true, S360M, VDD1_OPP3, 0x30},
>>> - /*OPP4*/
>>> - {true, S400M, VDD1_OPP4, 0x36},
>>> - /*OPP5*/
>>> - {true, S430M, VDD1_OPP5, 0x3C},
>>> -};
>>> +extern struct omap_opp *omap3_mpu_rate_table;
>>> +extern struct omap_opp *omap3_dsp_rate_table;
>>> +extern struct omap_opp *omap3_l3_rate_table;
>>>
>>> #endif
>>> diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
>>> index 7bc86b6..80a1c1d 100644
>>> --- a/arch/arm/mach-omap2/pm.h
>>> +++ b/arch/arm/mach-omap2/pm.h
>>> @@ -58,6 +58,12 @@ static inline void omap3_pm_init_cpuidle(
>>> {
>>> }
>>> #endif
>>> +/**
>>> + * omap3_pm_init_opp_table - OMAP opp table lookup called
>>>
>> after cpu is detected.
>>
>>> + * Initialize the basic opp table here, board files could
>>>
>> choose to modify opp
>>
>>> + * table after the basic initialization
>>> + */
>>> +extern void omap3_pm_init_opp_table(void);
>>>
>>> extern int resource_set_opp_level(int res, u32
>>>
>> target_level, int flags);
>>
>>> extern int resource_access_opp_lock(int res, int delta);
>>> diff --git a/arch/arm/mach-omap2/pm34xx.c
>>>
>> b/arch/arm/mach-omap2/pm34xx.c
>>
>>> index 627a509..ad21f5f 100644
>>> --- a/arch/arm/mach-omap2/pm34xx.c
>>> +++ b/arch/arm/mach-omap2/pm34xx.c
>>> @@ -40,6 +40,7 @@
>>> #include <plat/dmtimer.h>
>>> #include <plat/usb.h>
>>>
>>> +#include <plat/opp.h>
>>> #include <plat/resource.h>
>>>
>>> #include <asm/tlbflush.h>
>>> @@ -52,6 +53,7 @@
>>> #include "prm.h"
>>> #include "pm.h"
>>> #include "sdrc.h"
>>> +#include "omap3-opp.h"
>>>
>>> static int regset_save_on_suspend;
>>>
>>> @@ -100,6 +102,52 @@ static struct prm_setup_vc prm_setup = {
>>> .vdd1_off = 0x00, /* 0.6v */
>>> };
>>>
>>> +static struct omap_opp_def __initdata omap34xx_mpu_rate_table[] = {
>>> + /*OPP1 975mV */
>>> + {.enabled = true, .freq = 125000000, .u_volt = 975000},
>>> + /*OPP2 1.075V */
>>> + {.enabled = true, .freq = 250000000, .u_volt = 1075000},
>>> + /*OPP3 1.2V */
>>> + {.enabled = true, .freq = 500000000, .u_volt = 1200000},
>>> + /*OPP4 1.270V */
>>> + {.enabled = true, .freq = 550000000, .u_volt = 1270000},
>>> + /*OPP5 1.35V */
>>> + {.enabled = true, .freq = 600000000, .u_volt = 1350000},
>>> + /* Terminator */
>>> + {.enabled = 0, .freq = 0, .u_volt = 0}
>>> +};
>>> +
>>> +static struct omap_opp_def __initdata omap34xx_l3_rate_table[] = {
>>> + /*OPP1 - 975mV */
>>> + {.enabled = false, .freq = 0, .u_volt = 975000},
>>> + /*OPP2 1.05V */
>>> + {.enabled = true, .freq = 83000000, .u_volt = 1050000},
>>> + /*OPP3 1.15V*/
>>> + {.enabled = true, .freq = 166000000, .u_volt = 1150000},
>>> + /* Terminator */
>>> + {.enabled = 0, .freq = 0, .u_volt = 0}
>>> +};
>>> +
>>> +static struct omap_opp_def __initdata omap34xx_dsp_rate_table[] = {
>>> + /*OPP1*/
>>> + {.enabled = true, .freq = 90000000, .u_volt = 975000},
>>> + /*OPP2*/
>>> + {.enabled = true, .freq = 180000000, .u_volt = 1075000},
>>> + /*OPP3*/
>>> + {.enabled = true, .freq = 360000000, .u_volt = 1200000},
>>> + /*OPP4*/
>>> + {.enabled = true, .freq = 400000000, .u_volt = 1270000},
>>> + /*OPP5*/
>>> + {.enabled = true, .freq = 430000000, .u_volt = 1350000},
>>> + /* Terminator */
>>> + {.enabled = 0, .freq = 0, .u_volt = 0}
>>> +};
>>> +
>>> +struct omap_opp *omap3_mpu_rate_table;
>>> +struct omap_opp *omap3_dsp_rate_table;
>>> +struct omap_opp *omap3_l3_rate_table;
>>> +
>>> +
>>> static inline void omap3_per_save_context(void)
>>> {
>>> omap_gpio_save_context();
>>> @@ -1248,6 +1296,26 @@ static void __init configure_vc(void)
>>> pm_dbg_regset_init(2);
>>> }
>>>
>>> +void __init omap3_pm_init_opp_table(void)
>>> +{
>>> + int ret, i;
>>> + struct omap_opp_def *omap34xx_opp_def_list[] = {
>>> + omap34xx_mpu_rate_table,
>>> + omap34xx_l3_rate_table,
>>> + omap34xx_dsp_rate_table
>>> + };
>>> + struct omap_opp **omap3_rate_tables[] = {
>>> + &omap3_mpu_rate_table,
>>> + &omap3_l3_rate_table,
>>> + &omap3_dsp_rate_table
>>> + };
>>> + for (i = 0; i < ARRAY_SIZE(omap34xx_opp_def_list); i++) {
>>> + ret = opp_init(omap3_rate_tables[i],
>>>
>> omap34xx_opp_def_list[i]);
>>
>>> + /* We dont want half configured system at the moment */
>>> + BUG_ON(ret);
>>> + }
>>> +}
>>> +
>>> static int __init omap3_pm_early_init(void)
>>> {
>>> prm_clear_mod_reg_bits(OMAP3430_OFFMODE_POL, OMAP3430_GR_MOD,
>>> diff --git a/arch/arm/plat-omap/include/plat/omap-pm.h
>>>
>> b/arch/arm/plat-omap/include/plat/omap-pm.h
>>
>>> index 5dc2048..aa36339 100644
>>> --- a/arch/arm/plat-omap/include/plat/omap-pm.h
>>> +++ b/arch/arm/plat-omap/include/plat/omap-pm.h
>>> @@ -18,22 +18,7 @@
>>> #include <linux/cpufreq.h>
>>>
>>> #include "powerdomain.h"
>>> -
>>> -/**
>>> - * struct omap_opp - clock frequency-to-OPP ID table for DSP, MPU
>>> - * @enabled: enabled if true, disabled if false
>>> - * @rate: target clock rate
>>> - * @opp_id: OPP ID
>>> - * @min_vdd: minimum VDD1 voltage (in millivolts) for this OPP
>>> - *
>>> - * Operating performance point data. Can vary by OMAP chip
>>>
>> and board.
>>
>>> - */
>>> -struct omap_opp {
>>> - bool enabled;
>>> - unsigned long rate;
>>> - u8 opp_id;
>>> - u16 vsel;
>>> -};
>>> +#include <plat/opp.h>
>>>
>>> extern struct omap_opp *mpu_opps;
>>> extern struct omap_opp *dsp_opps;
>>> --
>>> 1.6.3.3
>>>
>>> --
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next prev parent reply other threads:[~2009-12-08 11:16 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-25 4:09 [PATCH 00/10 v3] omap3: pm: introduce support for 3630 OPPs Nishanth Menon
2009-11-25 4:09 ` [PATCH 01/10] omap3: pm: introduce enabled flag to omap_opp Nishanth Menon
2009-11-25 4:09 ` [PATCH 02/10 V3] omap3: pm: introduce opp accessor functions Nishanth Menon
2009-11-25 4:09 ` [PATCH 03/10 V3] omap3: pm: use opp accessor functions for omap34xx Nishanth Menon
2009-11-25 4:09 ` [PATCH 04/10 V3] omap3: pm: srf: use opp accessor functions Nishanth Menon
2009-11-25 4:09 ` [PATCH 05/10 V3] omap3: pm: sr: replace get_opp with freq_to_opp Nishanth Menon
2009-11-25 4:09 ` [PATCH 06/10 V3] omap3: pm: use opp accessor functions for omap-target Nishanth Menon
2009-11-25 4:09 ` [PATCH 07/10 V3] omap3: clk: use pm accessor functions for cpufreq table Nishanth Menon
2009-11-25 4:09 ` [PATCH 08/10] omap3: pm: remove VDDx_MIN/MAX macros Nishanth Menon
2009-11-25 4:09 ` [PATCH 09/10 V3] omap3: pm: introduce 3630 opps Nishanth Menon
2009-11-25 4:09 ` [PATCH 10/10] omap3: pm: omap3630 boards: enable 3630 opp tables Nishanth Menon
2009-12-08 7:49 ` [PATCH 09/10 V3] omap3: pm: introduce 3630 opps Eduardo Valentin
2009-12-08 10:59 ` Menon, Nishanth
2009-12-08 11:18 ` Eduardo Valentin
2009-12-08 11:31 ` Menon, Nishanth
2009-12-08 11:40 ` Eduardo Valentin
2009-12-08 14:15 ` Nishanth Menon
2009-12-07 16:54 ` [PATCH 07/10 V3] omap3: clk: use pm accessor functions for cpufreq table Tero.Kristo
2009-12-08 11:09 ` Menon, Nishanth
2009-12-08 7:54 ` Eduardo Valentin
2009-11-25 17:56 ` [PATCH 06/10 V3] omap3: pm: use opp accessor functions for omap-target Kevin Hilman
2009-12-08 7:59 ` Eduardo Valentin
2009-12-07 16:59 ` [PATCH 04/10 V3] omap3: pm: srf: use opp accessor functions Tero.Kristo
2009-12-08 11:14 ` Menon, Nishanth
2009-11-25 17:22 ` [PATCH 03/10 V3] omap3: pm: use opp accessor functions for omap34xx Kevin Hilman
2009-11-25 17:27 ` Kevin Hilman
2009-12-07 17:02 ` Tero.Kristo
2009-12-08 11:16 ` Menon, Nishanth [this message]
2009-12-08 8:08 ` Eduardo Valentin
2009-11-25 16:30 ` [PATCH 02/10 V3] omap3: pm: introduce opp accessor functions Kevin Hilman
2009-11-25 20:31 ` Nishanth Menon
2009-11-25 23:46 ` Kevin Hilman
2009-11-26 0:22 ` Menon, Nishanth
2009-12-08 8:23 ` Eduardo Valentin
2009-12-08 11:01 ` Menon, Nishanth
2009-11-25 15:24 ` [PATCH 00/10 v3] omap3: pm: introduce support for 3630 OPPs Kevin Hilman
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