timer: Remove DM_FLAG_PRE_RELOC flag in various drivers

When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.

To mitigate this potential impact, the following changes are
implemented:

- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
  only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
  is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
  drivers that support both statically declared devices and
  configuration from device tree

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

drivers/timer/ag101p_timer.c

@@ -115,5 +115,4 @@ U_BOOT_DRIVER(altera_timer) = {
 	.platdata_auto_alloc_size = sizeof(struct atftmr_timer_platdata),
 	.probe = atftmr_timer_probe,
 	.ops	= &ag101p_timer_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 };

drivers/timer/altera_timer.c

@@ -92,5 +92,4 @@ U_BOOT_DRIVER(altera_timer) = {
 	.platdata_auto_alloc_size = sizeof(struct altera_timer_platdata),
 	.probe = altera_timer_probe,
 	.ops	= &altera_timer_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 };

drivers/timer/arc_timer.c

@@ -107,6 +107,5 @@ U_BOOT_DRIVER(arc_timer) = {
 	.of_match = arc_timer_ids,
 	.probe = arc_timer_probe,
 	.ops	= &arc_timer_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 	.priv_auto_alloc_size = sizeof(struct arc_timer_priv),
 };

drivers/timer/ast_timer.c

@@ -90,5 +90,4 @@ U_BOOT_DRIVER(ast_timer) = {
 	.priv_auto_alloc_size = sizeof(struct ast_timer_priv),
 	.ofdata_to_platdata = ast_timer_ofdata_to_platdata,
 	.ops = &ast_timer_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 };

drivers/timer/atcpit100_timer.c

@@ -110,5 +110,4 @@ U_BOOT_DRIVER(atcpit100_timer) = {
 	.platdata_auto_alloc_size = sizeof(struct atcpit_timer_platdata),
 	.probe = atcpit_timer_probe,
 	.ops	= &atcpit_timer_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 };

drivers/timer/atmel_pit_timer.c

@@ -85,5 +85,4 @@ U_BOOT_DRIVER(atmel_pit) = {
 	.platdata_auto_alloc_size = sizeof(struct atmel_pit_platdata),
 	.probe	= atmel_pit_probe,
 	.ops	= &atmel_pit_ops,
-	.flags	= DM_FLAG_PRE_RELOC,
 };

drivers/timer/cadence-ttc.c

@@ -111,5 +111,4 @@ U_BOOT_DRIVER(cadence_ttc) = {
 	.priv_auto_alloc_size = sizeof(struct cadence_ttc_priv),
 	.probe = cadence_ttc_probe,
 	.ops = &cadence_ttc_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 };

drivers/timer/dw-apb-timer.c

@@ -83,7 +83,6 @@ U_BOOT_DRIVER(dw_apb_timer) = {
 	.id		= UCLASS_TIMER,
 	.ops		= &dw_apb_timer_ops,
 	.probe		= dw_apb_timer_probe,
-	.flags		= DM_FLAG_PRE_RELOC,
 	.of_match	= dw_apb_timer_ids,
 	.ofdata_to_platdata = dw_apb_timer_ofdata_to_platdata,
 	.priv_auto_alloc_size = sizeof(struct dw_apb_timer_priv),

drivers/timer/mpc83xx_timer.c

@@ -244,6 +244,5 @@ U_BOOT_DRIVER(mpc83xx_timer) = {
 	.of_match = mpc83xx_timer_ids,
 	.probe = mpc83xx_timer_probe,
 	.ops	= &mpc83xx_timer_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 	.priv_auto_alloc_size = sizeof(struct mpc83xx_timer_priv),
 };

drivers/timer/omap-timer.c

@@ -104,5 +104,4 @@ U_BOOT_DRIVER(omap_timer) = {
 	.priv_auto_alloc_size = sizeof(struct omap_timer_priv),
 	.probe = omap_timer_probe,
 	.ops	= &omap_timer_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 };

drivers/timer/rockchip_timer.c

@@ -163,7 +163,6 @@ U_BOOT_DRIVER(rockchip_rk3368_timer) = {
 	.of_match = rockchip_timer_ids,
 	.probe = rockchip_timer_probe,
 	.ops	= &rockchip_timer_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 	.priv_auto_alloc_size = sizeof(struct rockchip_timer_priv),
 #if CONFIG_IS_ENABLED(OF_PLATDATA)
 	.platdata_auto_alloc_size = sizeof(struct rockchip_timer_plat),

drivers/timer/sti-timer.c

@@ -74,5 +74,4 @@ U_BOOT_DRIVER(sti_timer) = {
 	.priv_auto_alloc_size = sizeof(struct sti_timer_priv),
 	.probe = sti_timer_probe,
 	.ops = &sti_timer_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 };

drivers/timer/stm32_timer.c

@@ -132,6 +132,5 @@ U_BOOT_DRIVER(stm32_timer) = {
 	.priv_auto_alloc_size = sizeof(struct stm32_timer_priv),
 	.probe = stm32_timer_probe,
 	.ops = &stm32_timer_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 };
 

drivers/timer/tsc_timer.c

@@ -424,5 +424,4 @@ U_BOOT_DRIVER(tsc_timer) = {
 	.of_match = tsc_timer_ids,
 	.probe = tsc_timer_probe,
 	.ops	= &tsc_timer_ops,
-	.flags = DM_FLAG_PRE_RELOC,
 };