2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-28 23:23:55 +08:00
linux-next/arch/arm/mach-omap2/clock2430.c
Tony Lindgren 8634155ef4 The first set of OMAP PRM/CM-related cleanup patches for 3.8.
Prepares for the future move of the PRM/CM code to drivers/.  Also
 includes some prcm.[ch] cleanup patches from the WDTIMER cleanup
 series that don't need external acks.
 
 Basic test logs for this branch on top of v3.7-rc2 are here:
 
 http://www.pwsan.com/omap/testlogs/prcm_cleanup_a_3.8/20121021123719/
 
 But due to the number of unrelated regressions present in v3.7-rc[12],
 it's not particularly usable as a testing base.  With reverts, fixes,
 and workarounds applied as documented in:
 
 http://www.pwsan.com/omap/testlogs/test_v3.7-rc2/20121020134755/README.txt
 
 the following test logs were obtained:
 
 http://www.pwsan.com/omap/testlogs/prcm_cleanup_a_3.8/20121020231757/
 
 which indicate that the series tests cleanly.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJQhEVeAAoJEMePsQ0LvSpLXMAP/R823zHuhSBsFYTAzoLpOsBu
 1btfoXY+aTh/ZYQpn2zqbseHyBVoN7JuBNFA25UlgCIB/+tL2o+B62HQE3c31HZi
 zrOlUrSvIl7zYTLhbu8rezULSYGO3RHqtUGLJ9/RUV3su8zIATmHKgzA1f/aYH9x
 2OKVIijXjvK4kKRpHhg8BGlD6stbuFDJbmik2/wgcO+159lKY6ZTRnHsj6PgZVIO
 BjbxpBujLYVBhJRJP0NNLVtGToGK54GvnHZxfVCu9oJ87n2amgaP6RHHHfEX0eMJ
 K65toYNIzZEmMahnazCcsiB+xK2Y2iiSZdOMPhH0FspCPTKTUl+czOlMGq7oyHmU
 xVmDyVHOVd5JRt5d985VlVScDrye06GxjWri557eeGcvOyQrlhJSntjdL2RZZaiu
 bpIhT1PRo8hqxtajcZlqBT7jSaH8kxQIQRXgGqJzY9iYLfUGU6DU7WYoqQTrrev7
 aCZG8SnDbmltXMvhw13owDzy8xpdssCFaT8Fbxaxa6jq1GF1xyfEucDZDQPlZZd7
 vbhdjYCBMiFcgJ3xWAmivboLPR1r5nZQdpwuYJTqoIvuJutB8Y0dJza7Dm0DGehc
 uJw/K/L/2qBdlOatFU4nk1c4AoTXZ+zn+ZVziTFus6ajhdB46C0i/vMLAXF68aDQ
 23ow9fKjRsuHfKqjfzMP
 =asxx
 -----END PGP SIGNATURE-----

Merge tag 'omap-cleanup-a-for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.8/cleanup-prcm

The first set of OMAP PRM/CM-related cleanup patches for 3.8.
Prepares for the future move of the PRM/CM code to drivers/.  Also
includes some prcm.[ch] cleanup patches from the WDTIMER cleanup
series that don't need external acks.

Basic test logs for this branch on top of v3.7-rc2 are here:

http://www.pwsan.com/omap/testlogs/prcm_cleanup_a_3.8/20121021123719/

But due to the number of unrelated regressions present in v3.7-rc[12],
it's not particularly usable as a testing base.  With reverts, fixes,
and workarounds applied as documented in:

http://www.pwsan.com/omap/testlogs/test_v3.7-rc2/20121020134755/README.txt

the following test logs were obtained:

http://www.pwsan.com/omap/testlogs/prcm_cleanup_a_3.8/20121020231757/

which indicate that the series tests cleanly.

Conflicts:
	arch/arm/mach-omap2/Makefile
	arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
	arch/arm/mach-omap2/pm24xx.c
2012-10-24 17:05:59 -07:00

60 lines
1.8 KiB
C

/*
* clock2430.c - OMAP2430-specific clock integration code
*
* Copyright (C) 2005-2008 Texas Instruments, Inc.
* Copyright (C) 2004-2010 Nokia Corporation
*
* Contacts:
* Richard Woodruff <r-woodruff2@ti.com>
* Paul Walmsley
*
* Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
* Gordon McNutt and RidgeRun, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#undef DEBUG
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/io.h>
#include "soc.h"
#include "iomap.h"
#include "clock.h"
#include "clock2xxx.h"
#include "cm2xxx.h"
#include "cm-regbits-24xx.h"
/**
* omap2430_clk_i2chs_find_idlest - return CM_IDLEST info for 2430 I2CHS
* @clk: struct clk * being enabled
* @idlest_reg: void __iomem ** to store CM_IDLEST reg address into
* @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into
* @idlest_val: pointer to a u8 to store the CM_IDLEST indicator
*
* OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the
* CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE. This custom function
* passes back the correct CM_IDLEST register address for I2CHS
* modules. No return value.
*/
static void omap2430_clk_i2chs_find_idlest(struct clk *clk,
void __iomem **idlest_reg,
u8 *idlest_bit,
u8 *idlest_val)
{
*idlest_reg = OMAP2430_CM_REGADDR(CORE_MOD, CM_IDLEST);
*idlest_bit = clk->enable_bit;
*idlest_val = OMAP24XX_CM_IDLEST_VAL;
}
/* 2430 I2CHS has non-standard IDLEST register */
const struct clkops clkops_omap2430_i2chs_wait = {
.enable = omap2_dflt_clk_enable,
.disable = omap2_dflt_clk_disable,
.find_idlest = omap2430_clk_i2chs_find_idlest,
.find_companion = omap2_clk_dflt_find_companion,
};