| Message ID | 20220504134449.64473-1-andriy.shevchenko@linux.intel.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v1,1/4] powerpc/52xx: Remove dead code, i.e. mpc52xx_get_xtal_freq() | expand |
On 5/05/22 01:44, Andy Shevchenko wrote: > Switch mpc5xxx_get_bus_frequency() to use fwnode in order to help > cleaning up other parts of the kernel from OF specific code. > > No functional change intended. > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > --- > arch/powerpc/include/asm/mpc5xxx.h | 9 +++- > arch/powerpc/platforms/52xx/mpc52xx_gpt.c | 2 +- > arch/powerpc/sysdev/mpc5xxx_clocks.c | 41 ++++++++++--------- > drivers/ata/pata_mpc52xx.c | 2 +- > drivers/i2c/busses/i2c-mpc.c | 7 ++-- > drivers/net/can/mscan/mpc5xxx_can.c | 2 +- > drivers/net/ethernet/freescale/fec_mpc52xx.c | 2 +- > .../net/ethernet/freescale/fec_mpc52xx_phy.c | 3 +- > .../net/ethernet/freescale/fs_enet/mii-fec.c | 4 +- > drivers/spi/spi-mpc52xx.c | 2 +- > drivers/tty/serial/mpc52xx_uart.c | 4 +- > 11 files changed, 44 insertions(+), 34 deletions(-) <snip> > diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c > index 6c698c10d3cd..2030668ecde5 100644 > --- a/drivers/i2c/busses/i2c-mpc.c > +++ b/drivers/i2c/busses/i2c-mpc.c > @@ -239,6 +239,7 @@ static const struct mpc_i2c_divider mpc_i2c_dividers_52xx[] = { > static int mpc_i2c_get_fdr_52xx(struct device_node *node, u32 clock, > u32 *real_clk) > { > + struct fwnode_handle = of_fwnode_handle(node); I think you mean + struct fwnode_handle *fwnode = of_fwnode_handle(node); > const struct mpc_i2c_divider *div = NULL; > unsigned int pvr = mfspr(SPRN_PVR); > u32 divider; > @@ -246,12 +247,12 @@ static int mpc_i2c_get_fdr_52xx(struct device_node *node, u32 clock, > > if (clock == MPC_I2C_CLOCK_LEGACY) { > /* see below - default fdr = 0x3f -> div = 2048 */ > - *real_clk = mpc5xxx_get_bus_frequency(node) / 2048; > + *real_clk = mpc5xxx_fwnode_get_bus_frequency(fwnode) / 2048; > return -EINVAL; > } > > /* Determine divider value */ > - divider = mpc5xxx_get_bus_frequency(node) / clock; > + divider = mpc5xxx_fwnode_get_bus_frequency(fwnode) / clock; > > /* > * We want to choose an FDR/DFSR that generates an I2C bus speed that > @@ -266,7 +267,7 @@ static int mpc_i2c_get_fdr_52xx(struct device_node *node, u32 clock, > break; > } > > - *real_clk = mpc5xxx_get_bus_frequency(node) / div->divider; > + *real_clk = mpc5xxx_fwnode_get_bus_frequency(fwnode) / div->divider; > return (int)div->fdr; > } >
diff --git a/arch/powerpc/include/asm/mpc52xx.h b/arch/powerpc/include/asm/mpc52xx.h index ce1e0aabaa64..ddd80aae1e32 100644 --- a/arch/powerpc/include/asm/mpc52xx.h +++ b/arch/powerpc/include/asm/mpc52xx.h @@ -274,7 +274,6 @@ extern void mpc52xx_declare_of_platform_devices(void); extern int mpc5200_psc_ac97_gpio_reset(int psc_number); extern void mpc52xx_map_common_devices(void); extern int mpc52xx_set_psc_clkdiv(int psc_id, int clkdiv); -extern unsigned int mpc52xx_get_xtal_freq(struct device_node *node); extern void __noreturn mpc52xx_restart(char *cmd); /* mpc52xx_gpt.c */ diff --git a/arch/powerpc/platforms/52xx/mpc52xx_common.c b/arch/powerpc/platforms/52xx/mpc52xx_common.c index 565e3a83dc9e..4a39e1cb2263 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_common.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_common.c @@ -203,43 +203,6 @@ int mpc52xx_set_psc_clkdiv(int psc_id, int clkdiv) } EXPORT_SYMBOL(mpc52xx_set_psc_clkdiv); -/** - * mpc52xx_get_xtal_freq - Get SYS_XTAL_IN frequency for a device - * - * @node: device node - * - * Returns the frequency of the external oscillator clock connected - * to the SYS_XTAL_IN pin, or 0 if it cannot be determined. - */ -unsigned int mpc52xx_get_xtal_freq(struct device_node *node) -{ - u32 val; - unsigned int freq; - - if (!mpc52xx_cdm) - return 0; - - freq = mpc5xxx_get_bus_frequency(node); - if (!freq) - return 0; - - if (in_8(&mpc52xx_cdm->ipb_clk_sel) & 0x1) - freq *= 2; - - val = in_be32(&mpc52xx_cdm->rstcfg); - if (val & (1 << 5)) - freq *= 8; - else - freq *= 4; - if (val & (1 << 6)) - freq /= 12; - else - freq /= 16; - - return freq; -} -EXPORT_SYMBOL(mpc52xx_get_xtal_freq); - /** * mpc52xx_restart: ppc_md->restart hook for mpc5200 using the watchdog timer */
It seems mpc52xx_get_xtal_freq() is not used anywhere. Remove dead code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- arch/powerpc/include/asm/mpc52xx.h | 1 - arch/powerpc/platforms/52xx/mpc52xx_common.c | 37 -------------------- 2 files changed, 38 deletions(-)