[PULL,27/37] hw/misc: Don't special case RESET_TYPE_COLD in npcm7xx_clk, gcr

Commit Message

Peter Maydell April 25, 2024, 10:39 a.m. UTC

The npcm7xx_clk and npcm7xx_gcr device reset methods look at
the ResetType argument and only handle RESET_TYPE_COLD,
producing a warning if another reset type is passed. This
is different from how every other three-phase-reset method
we have works, and makes it difficult to add new reset types.

A better pattern is "assume that any reset type you don't know
about should be handled like RESET_TYPE_COLD"; switch these
devices to do that. Then adding a new reset type will only
need to touch those devices where its behaviour really needs
to be different from the standard cold reset.

Signed-off-by: Peter Maydell <[e-mail]>
Reviewed-by: Richard Henderson <[e-mail]>
Reviewed-by: Philippe Mathieu-Daudé <[e-mail]>
Reviewed-by: Luc Michel <[e-mail]>
Message-id: [e-mail]
---
 hw/misc/npcm7xx_clk.c | 13 +++----------
 hw/misc/npcm7xx_gcr.c | 12 ++++--------
 2 files changed, 7 insertions(+), 18 deletions(-)

Patch

diff --git a/hw/misc/npcm7xx_clk.c b/hw/misc/npcm7xx_clk.c
index ac1622c38aa..2098c85ee01 100644
--- a/hw/misc/npcm7xx_clk.c
+++ b/hw/misc/npcm7xx_clk.c
@@ -873,20 +873,13 @@  static void npcm7xx_clk_enter_reset(Object *obj, ResetType type)
 
     QEMU_BUILD_BUG_ON(sizeof(s->regs) != sizeof(cold_reset_values));
 
-    switch (type) {
-    case RESET_TYPE_COLD:
-        memcpy(s->regs, cold_reset_values, sizeof(cold_reset_values));
-        s->ref_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
-        npcm7xx_clk_update_all_clocks(s);
-        return;
-    }
-
+    memcpy(s->regs, cold_reset_values, sizeof(cold_reset_values));
+    s->ref_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+    npcm7xx_clk_update_all_clocks(s);
     /*
      * A small number of registers need to be reset on a core domain reset,
      * but no such reset type exists yet.
      */
-    qemu_log_mask(LOG_UNIMP, "%s: reset type %d not implemented.",
-                  __func__, type);
 }
 
 static void npcm7xx_clk_init_clock_hierarchy(NPCM7xxCLKState *s)
diff --git a/hw/misc/npcm7xx_gcr.c b/hw/misc/npcm7xx_gcr.c
index 9252f9d1488..c4c4e246d7e 100644
--- a/hw/misc/npcm7xx_gcr.c
+++ b/hw/misc/npcm7xx_gcr.c
@@ -159,14 +159,10 @@  static void npcm7xx_gcr_enter_reset(Object *obj, ResetType type)
 
     QEMU_BUILD_BUG_ON(sizeof(s->regs) != sizeof(cold_reset_values));
 
-    switch (type) {
-    case RESET_TYPE_COLD:
-        memcpy(s->regs, cold_reset_values, sizeof(s->regs));
-        s->regs[NPCM7XX_GCR_PWRON] = s->reset_pwron;
-        s->regs[NPCM7XX_GCR_MDLR] = s->reset_mdlr;
-        s->regs[NPCM7XX_GCR_INTCR3] = s->reset_intcr3;
-        break;
-    }
+    memcpy(s->regs, cold_reset_values, sizeof(s->regs));
+    s->regs[NPCM7XX_GCR_PWRON] = s->reset_pwron;
+    s->regs[NPCM7XX_GCR_MDLR] = s->reset_mdlr;
+    s->regs[NPCM7XX_GCR_INTCR3] = s->reset_intcr3;
 }
 
 static void npcm7xx_gcr_realize(DeviceState *dev, Error **errp)